fix(ci-runner): use pre-built luna-charts-test image for component tests

Drops the in-pipeline docker build/push step and docker-in-docker
dependency entirely. The test image (built from Dockerfile.test) is
now built and pushed manually/out-of-band, tagged by playwright
version. component-tests just pulls and runs it directly.

.gitea/workflows/quality-gate.yml

@@ -68,39 +68,10 @@ jobs:
       - name: Run unit tests
         run: pnpm test:unit
 
-  build-test-image:
-    runs-on: ubuntu-docker-dind
-    container:
-      image: git.byting-pandas.ninja/ci/node22-docker:latest
-      credentials:
-        username: ${{ secrets.REGISTRY_USER }}
-        password: ${{ secrets.REGISTRY_TOKEN }}
-      options: --network host
-      env:
-        DOCKER_HOST: tcp://localhost:2375
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Wait for docker daemon
-        run: |
-          for i in $(seq 1 30); do
-            docker info > /dev/null 2>&1 && break
-            echo "waiting for docker daemon... ($i/30)"
-            sleep 2
-          done
-          docker info
-
-      - name: Build and push test image
-        run: |
-          docker login git.byting-pandas.ninja -u ${{ secrets.REGISTRY_USER }} -p ${{ secrets.REGISTRY_TOKEN }}
-          docker build -t git.byting-pandas.ninja/ci/luna-charts-test:${{ gitea.sha }} -f Dockerfile.test .
-          docker push git.byting-pandas.ninja/ci/luna-charts-test:${{ gitea.sha }}
-
   component-tests:
-    needs: build-test-image
     runs-on: ubuntu-docker-dind
     container:
-      image: git.byting-pandas.ninja/ci/luna-charts-test:${{ gitea.sha }}
+      image: git.byting-pandas.ninja/ci/luna-charts-test:v1.62.1
       credentials:
         username: ${{ secrets.REGISTRY_USER }}
         password: ${{ secrets.REGISTRY_TOKEN }}