Upgrade media / GStreamer / GLib (#30750)

- Upgrade the version of GStreamer for Windows

This upgrades the Windows build to use the most recent version of
GStreamer. This is necessary to upgrade our GStreamer dependency.

- Stop shipping GStreamer binaries on Linux

The binary bundle of GStreamer that we package is not used to compile --
only to run layout tests. It's too old for the APIs that we are using
(as evidenced by needed 1.18 for WebRTC) and nowadays Linux
distributions carry a new version so it's unecessary for our build
machines. No longer using this binary bundle will allow us to upgrade
our GStreamer dependency -- which now has stricter checks that we
are using at least version 1.18.

- Upgrade media to use newer versions of GStreamer / GLib dependencies

.github/workflows/linux-wpt.yml

@@ -21,6 +21,7 @@ env:
   RUST_BACKTRACE: 1
   SHELL: /bin/bash
   WPT_COMMAND_LINE_ARG: "${{ inputs.wpt-layout == 'layout-2013' && '--legacy-layout' || '' }}"
+  GST_PLUGIN_FEATURE_RANK: pulsesink:NONE,alsasink:NONE,jacksink:NONE,fakesink:MAX
 
 jobs:
   linux-wpt:
@@ -48,25 +49,14 @@ jobs:
         with:
           name: release-binary
           path: release-binary
-      - name: Cache libffi
-        id: cache
-        uses: actions/cache@v3
-        with:
-          path: ./libffi6_3.2.1-8_amd64.deb
-          key: cache-libffi
-      - name: Download libffi
-        if: steps.cache.outputs.cache-hit != 'true'
-        run: |
-          wget http://mirrors.kernel.org/ubuntu/pool/main/libf/libffi/libffi6_3.2.1-8_amd64.deb
       - name: unPackage binary
         run: tar -xzf release-binary/target.tar.gz
-      - name: Prep test environment
+      - name: Bootstrap dependencies
         run: |
           python3 -m pip install --upgrade pip
           sudo apt update
-          sudo apt install -qy --no-install-recommends libgl1 libssl1.1 libdbus-1-3 libxcb-xfixes0-dev libxcb-shape0-dev libunwind8 libgl1-mesa-dri mesa-vulkan-drivers libegl1-mesa
-          sudo apt install ./libffi6_3.2.1-8_amd64.deb
-          python3 ./mach bootstrap-gstreamer
+          sudo apt install -qy --no-install-recommends mesa-vulkan-drivers
+          python3 ./mach bootstrap
       - name: Sync from upstream WPT
         if: ${{ inputs.wpt-sync-from-upstream }}
         run: |

.github/workflows/linux.yml

@@ -96,7 +96,9 @@ jobs:
       - name: Bootstrap Python
         run: python3 -m pip install --upgrade pip
       - name: Bootstrap dependencies
-        run: sudo apt update && python3 ./mach bootstrap
+        run: |
+          sudo apt update
+          python3 ./mach bootstrap
       - name: Tidy
         run: python3 ./mach test-tidy --no-progress --all
       - name: Build (${{ inputs.profile }})