ci: make test-pull-request more useful (#711)

1. Don't cancel all in-progress and queued integration tests jobs if one of
them fails.

2. Test all pull requests targeting any branch, not only targeting `main`,
`dev` and `oapi` branches.

3. There's no need to enable arm64 emulation when not testing arm64 agent.
Use the right way to enable arm64.

.github/workflows/test-agent.yml

@@ -15,11 +15,9 @@ on:
     branches: 
       - main
       - 'dev'
+  # trigger job for each pull request, regardless of the target branch
   pull_request:
-    branches: 
-      - main
-      - 'dev'
-      - 'oapi'
+
 jobs:
   daemon-unit-tests:
     runs-on: ubuntu-latest
@@ -96,8 +94,11 @@ jobs:
         with:
           path: php-agent
       - name: Enable arm64 emulation
-        run: |
-          docker run --privileged --rm tonistiigi/binfmt --install arm64
+        if: ${{ matrix.arch == 'arm64' }}
+        uses: docker/setup-qemu-action@v2
+        with:
+          image: tonistiigi/binfmt:${{vars.BINFMT_IMAGE_VERSION}}
+          platforms: arm64
       - name: Login to Docker Hub
         uses: docker/login-action@v2
         with:
@@ -159,6 +160,7 @@ jobs:
     needs: [daemon-unit-tests, agent-unit-test]
     runs-on: ubuntu-latest
     strategy:
+      fail-fast: false
       matrix:
         platform: [gnu, musl]
         arch: [amd64, arm64]