Fix test job: use docker driver for load, drop SARIF upload and GHCR login

.github/workflows/build.yaml

@@ -45,22 +45,14 @@ jobs:
         with:
           images: ${{ env.GHCR_REPO }}
 
-      - name: Login to GHCR
-        uses: docker/login-action@v3
-        with:
-          registry: ghcr.io
-          username: ${{ github.repository_owner }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
         with:
-          driver-opts: network=host
+          driver: docker
 
       - name: Build
         uses: docker/build-push-action@v6
         with:
-          labels: ${{ steps.meta.outputs.labels }}
           context: ./build
           file: ./build/Dockerfile
           load: true
@@ -72,15 +64,9 @@ jobs:
         uses: aquasecurity/trivy-action@0.30.0
         with:
           image-ref: "protonmail-bridge:test"
-          format: 'sarif'
+          format: 'table'
           exit-code: 0
           severity: 'CRITICAL,HIGH'
-          output: 'trivy-results.sarif'
-
-      - name: Upload Trivy scan SARIF report
-        uses: github/codeql-action/upload-sarif@v3
-        with:
-          sarif_file: 'trivy-results.sarif'
 
   build:
     runs-on: ubuntu-latest