ci: Switch to actions/checkout@v4 (#31379)

This change also removes the use of `fetch-depth: 2` where it isn't
necessary. These were likely copy-and-pasted from other workflows.

.github/workflows/android.yml

@@ -29,13 +29,13 @@ jobs:
       matrix:
         arch: ['armv7-linux-androideabi', 'i686-linux-android']
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         if: github.event_name != 'issue_comment' && github.event_name != 'pull_request_target'
         with:
           fetch-depth: 2
       # This is necessary to checkout the pull request if this run was triggered
       # via an `issue_comment` action on a pull request.
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         if: github.event_name == 'issue_comment' || github.event_name == 'pull_request_target'
         with:
           ref: refs/pull/${{ github.event.issue.number || github.event.number }}/head

.github/workflows/docs.yml

@@ -12,9 +12,7 @@ jobs:
     name: Upload docs to GitHub Pages
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
-        with:
-          fetch-depth: 2
       - name: Bootstrap
         run: |
           python3 -m pip install --upgrade pip

.github/workflows/linux-wpt.yml

@@ -36,17 +36,14 @@ jobs:
       matrix:
         chunk_id: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         if: github.event_name != 'pull_request_target'
-        with:
-          fetch-depth: 2
       # This is necessary to checkout the pull request if this run was triggered via a
       # `pull_request_target` event.
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         if: github.event_name == 'pull_request_target'
         with:
           ref: refs/pull/${{ github.event.number }}/head
-          fetch-depth: 2
       - uses: actions/download-artifact@v4
         with:
           name: ${{ inputs.profile }}-binary-linux
@@ -109,10 +106,8 @@ jobs:
           name: wpt-full-logs-linux-${{ inputs.wpt-layout }}
           pattern: wpt-full-logs-linux-${{ inputs.wpt-layout }}-*
           delete-merged: true
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         if: ${{ !cancelled() && !inputs.wpt-sync-from-upstream }}
-        with:
-          fetch-depth: 2
       - uses: actions/download-artifact@v4
         if: ${{ !cancelled() && !inputs.wpt-sync-from-upstream }}
         with:

.github/workflows/linux.yml

@@ -71,17 +71,17 @@ jobs:
     # runners which still use 20.04.
     runs-on: ubuntu-${{ inputs.upload && '20.04' || '22.04' }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         if: github.event_name != 'pull_request_target'
         with:
-          fetch-depth: 2
+          fetch-depth: 2 # This is necessary for `test-tidy`.
       # This is necessary to checkout the pull request if this run was triggered via a
       # `pull_request_target` event.
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         if: github.event_name == 'pull_request_target'
         with:
           ref: refs/pull/${{ github.event.number }}/head
-          fetch-depth: 2
+          fetch-depth: 2 # This is necessary for `test-tidy`.
       - name: Run sccache-cache
         uses: mozilla-actions/sccache-action@v0.0.3
       - name: Set LIBCLANG_PATH env # needed for bindgen in mozangle

.github/workflows/mac-wpt.yml

@@ -30,17 +30,14 @@ jobs:
       matrix:
         chunk_id: [1, 2, 3, 4, 5]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         if: github.event_name != 'pull_request_target'
-        with:
-          fetch-depth: 2
       # This is necessary to checkout the pull request if this run was triggered via a
       # `pull_request_target` event.
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         if: github.event_name == 'pull_request_target'
         with:
           ref: refs/pull/${{ github.event.number }}/head
-          fetch-depth: 2
       - uses: actions/download-artifact@v4
         with:
           name: ${{ inputs.profile }}-binary-macos

.github/workflows/mac.yml

@@ -68,17 +68,14 @@ jobs:
       - name: Kill XProtectBehaviorService
         run: |
           echo Killing XProtect.; sudo pkill -9 XProtect >/dev/null || true;
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         if: github.event_name != 'pull_request_target'
-        with:
-          fetch-depth: 2
       # This is necessary to checkout the pull request if this run was triggered via a
       # `pull_request_target` event.
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         if: github.event_name == 'pull_request_target'
         with:
           ref: refs/pull/${{ github.event.number }}/head
-          fetch-depth: 2
       - name: Run sccache-cache
         uses: mozilla-actions/sccache-action@v0.0.3
       - name: Install taplo

.github/workflows/pull-request-wpt-export.yml

@@ -17,7 +17,7 @@ jobs:
           cd servo
           git fetch origin pull/${{ github.event.pull_request.number}}/head:pr --depth ${{ env.PR_FETCH_DEPTH }}
       - name: Check out wpt
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           path: wpt
           repository: 'web-platform-tests/wpt'

.github/workflows/scheduled-wpt-import.yml

@@ -28,9 +28,7 @@ jobs:
       - "linux"
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
-        with:
-          fetch-depth: 2
       - uses: actions/download-artifact@v4
         with:
           name: wpt-full-logs-linux-layout-2013

.github/workflows/try.yml

@@ -32,7 +32,7 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: '3.10'
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 1
           sparse-checkout: |

.github/workflows/try_labels.yml

@@ -80,12 +80,11 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: '3.10'
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           # This is necessary to checkout the pull request if this run was triggered
           # via an `label` action on a pull request.
           ref: refs/pull/${{ github.event.number }}/head
-          fetch-depth: 1
           sparse-checkout: |
             python/servo/try_parser.py
           sparse-checkout-cone-mode: false

.github/workflows/windows.yml

@@ -49,13 +49,11 @@ jobs:
     name: Windows Build
     runs-on: windows-2022
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         if: github.event_name != 'pull_request_target'
-        with:
-          fetch-depth: 2
       # This is necessary to checkout the pull request if this run was triggered via a
       # `pull_request_target` event.
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         if: github.event_name == 'pull_request_target'
         with:
           ref: refs/pull/${{ github.event.number }}/head