Build/Test Tools: Store artefacts of failing E2E test runs.

Modify the E2E workflow to store the screenshots and HTML files generated during failing tests as an artifact in the workflow.

No artefact is stored for passing test runs.

Props peterwilsoncc, isabel_brison.
Fixes #58596.



git-svn-id: https://develop.svn.wordpress.org/trunk@55991 602fd350-edb4-49c9-b593-d223f7449a82

.github/workflows/end-to-end-tests.yml

@@ -110,6 +110,14 @@ jobs:
       - name: Run E2E tests
         run: npm run test:e2e
 
+      - name: Archive debug artifacts (screenshots, HTML snapshots)
+        uses: actions/upload-artifact@0b7f8abb1508181956e8e162db84b466c27e18ce # v3.1.2
+        if: always()
+        with:
+            name: failures-artifacts
+            path: artifacts
+            if-no-files-found: ignore
+
       - name: Ensure version-controlled files are not modified or deleted
         run: git diff --exit-code