ci: fix Playwright retry shell and sweep grep

Author: Cristhianzl

.github/workflows/typescript_test.yml

@@ -364,19 +364,25 @@ jobs:
         uses: nick-fields/retry@v3
         with:
           # Bumped from 12 → 18 minutes. The shard carrying the
-          # starter-projects-shardN tests iterates every starter template;
+          # starter-projects template sweep iterates every starter template;
           # under Linux CI load that work can run past 12 minutes once a
           # single iteration triggers a per-test Playwright retry.
           timeout_minutes: 18
           max_attempts: 2
+          # The command block is bash; without this the action falls back to
+          # the runner default and PowerShell fails to parse the if/grep.
+          shell: bash
           command: |
             cd src/frontend
             echo 'Running tests with pattern: ${{ needs.determine-test-suite.outputs.test_grep }}'
             TEST_LIST="$(npx playwright test ${{ inputs.tests_folder }} ${{ needs.determine-test-suite.outputs.test_grep }} --shard ${{ matrix.shardIndex }}/${{ matrix.shardTotal }} --list --retries=3)"
             printf '%s\n' "$TEST_LIST"
 
             WORKERS=2
-            if printf '%s\n' "$TEST_LIST" | grep -q 'starter-projects-shard'; then
+            # The sweep lives in starter-projects-outdated-components.spec.ts
+            # (renamed from starter-projects-shardN in #13844 — keep this
+            # pattern in sync or the one-worker mitigation silently no-ops).
+            if printf '%s\n' "$TEST_LIST" | grep -q 'starter-projects-outdated-components'; then
               echo "Detected starter project template sweep in this shard; running it with one worker to avoid shared backend contention."
               WORKERS=1
             fi