OHOS CI: Robustness of speedometer (#37830)

OHOS CI: If speedometer does not finish we currently abort the whole
job.
This fixes this behaviour by adding an emtpy file and continuing the
job.

Runs with errors will now look like this. Notice annotation.
https://github.com/Narfinger/servo/actions/runs/16026933009

Successful run:
https://github.com/Narfinger/servo/actions/runs/16027530625

Signed-off-by: Narfinger <Narfinger@users.noreply.github.com>

Testing: Tested on CI.

Signed-off-by: Narfinger <Narfinger@users.noreply.github.com>

.github/workflows/ohos.yml

@@ -25,13 +25,12 @@ on:
         default: "release"
         type: choice
         description: "Cargo build profile"
-        options: [ "release", "debug", "production"]
+        options: ["release", "debug", "production"]
       bencher:
         required: false
         default: false
         type: boolean
 
-
 env:
   RUST_BACKTRACE: 1
   SHELL: /bin/bash
@@ -44,7 +43,7 @@ jobs:
     runs-on: ubuntu-22.04
     strategy:
       matrix:
-        target: ['aarch64-unknown-linux-ohos', 'x86_64-unknown-linux-ohos']
+        target: ["aarch64-unknown-linux-ohos", "x86_64-unknown-linux-ohos"]
     outputs:
       signed: ${{ steps.signing_config.outputs.signed }}
     steps:
@@ -138,7 +137,7 @@ jobs:
     needs: ["build"]
     strategy:
       matrix:
-        target: ['aarch64-unknown-linux-ohos', 'x86_64-unknown-linux-ohos']
+        target: ["aarch64-unknown-linux-ohos", "x86_64-unknown-linux-ohos"]
     if: ${{ inputs.bencher && inputs.profile != 'debug' && github.event_name != 'workflow_dispatch' && github.event_name != 'merge_group' }}
     uses: ./.github/workflows/bencher.yml
     with:
@@ -206,7 +205,7 @@ jobs:
       - name: Test loading servo.org
         env:
           TRACE_BUFFER_SZ_KB: "524288" # 512 MB
-        run:  |
+        run: |
           mkdir test_output
           hdc shell aa force-stop org.servo.servo
           # Hitrace allows us to save application and system traces, which is useful to analyze performance.
@@ -279,8 +278,14 @@ jobs:
         uses: ./.github/actions/setup-python
       - name: "Run benchmark"
         run: hitrace-bench -r support/hitrace-bencher/runs.json
+        continue-on-error: true
       - name: Run speedometer
+        id: BencherRun
         run: python3 ./mach test-speedometer-ohos --bmf-output speedometer.json
+        continue-on-error: true
+      - name: Create empty speedometer.json if failed
+        run: touch speedometer.json
+        if: ${{ steps.BencherRun.outcome == 'failure' }}
       - name: Getting model name
         run: |
           echo "MODEL_NAME=$(hdc bugreport | head -n 20 | grep MarketName | awk '{for (i=2; i<NF; i++) printf $i " "; print $NF}' -)" >> $GITHUB_ENV
@@ -288,7 +293,7 @@ jobs:
         run: jq --compact-output --slurp add speedometer.json bench.json > combined-bencher.json
       - uses: bencherdev/bencher@main
       - name: Uploading to bencher.dev
-        run: | 
+        run: |
           bencher run --adapter json \
                       --file combined-bencher.json \
                       --project '${{ env.BENCHER_PROJECT }}' \
@@ -296,4 +301,9 @@ jobs:
                       --token '${{ secrets.BENCHER_API_TOKEN }}' \
                       --github-actions '${{ secrets.GITHUB_TOKEN }}' \
                       --testbed="$MODEL_NAME"
-
+      - name: Success
+        if: ${{ !contains(steps.*.outcome, 'failure') && !contains(steps.*.outcome, 'cancelled') }}
+        run: exit 0
+      - name: Failure
+        if: contains(steps.*.outcome, 'failure') || contains(steps.*.outcome, 'cancelled')
+        run: exit 1