ci: drop PR sleep gate; self-hosted queue already serializes work

Co-authored-by: cynarAI <cynarAI@users.noreply.github.com>

.github/workflows/ci.yml

@@ -208,18 +208,8 @@ jobs:
       - run: pnpm install --frozen-lockfile
       - run: pnpm test:integration
 
-  wait-pr-image-validate:
-    name: Wait for PR image validate
-    if: github.event_name == 'pull_request'
-    runs-on: [self-hosted, evoo-ci, Linux]
-    timeout-minutes: 75
-    steps:
-      - name: Let publish-server-image validate finish on this host
-        run: sleep 2100
-
   test-e2e:
     name: Web E2E
-    needs: [lint, check, build, test, test-integration, wait-pr-image-validate]
     uses: ./.github/workflows/playwright.yml
     with:
       upload_artifacts: true