Add an error message if we can't pull DCR container image (#1736)

* Add an error message if we can't pull DCR container image

* Add continue on error to capture exitcode and next step

* Update the error message

Co-authored-by: Ravi <7014230+arelra@users.noreply.github.com>

---------

Co-authored-by: Ravi <7014230+arelra@users.noreply.github.com>

.github/workflows/e2e-playwright.yml

@@ -53,13 +53,20 @@ jobs:
       # This makes the commercial dev server available from inside the container
       # Note that GHA provides a service container feature, but it does not support this argument
       - name: Start DCR in a container
+        id: start-dcr-container
+        continue-on-error: true
         run: |
           /usr/bin/docker run -d \
             --network host \
             -p 3030:3030 \
             -e "PORT=3030" \
             -e "COMMERCIAL_BUNDLE_URL=http://localhost:3031/graun.standalone.commercial.js" \
             ghcr.io/guardian/dotcom-rendering:main
+          echo "exitcode=$?" >> $GITHUB_OUTPUT
+
+      - name: Start DCR in a container step failed
+        if: ${{ failure() && steps.start-dcr-container.conclusion == 'failure' && steps.start-dcr-container.outputs.exitcode == 125 }}
+        run: echo "Unable to fetch a DCR container image from the registry. Run the DCR main build in order to create a new container image." && exit 1
 
       - name: Install Playwright Browsers
         run: pnpm playwright install --with-deps chromium