migrating to self-hosted runners: pull-request.yaml jobs

.github/workflows/pull-request.yaml

@@ -1,4 +1,4 @@
-name: CI-pullrequest
+name: PR-Checks
 
 on:
   pull_request:
@@ -8,7 +8,7 @@ on:
 
 jobs:
   build:
-    name: Build
+    name: Validate
     runs-on: ubuntu-latest
     steps:
       - name: Checkout base branch
@@ -23,44 +23,27 @@ jobs:
         run: git checkout -b staging-pr-workflow
 
       - name: Pull scripts
-        run: sudo make pull-scripts
+        run: make pull-scripts
 
       - name: Check release.yaml
-        run: sudo make check-release-yaml
+        run: make check-release-yaml
 
       - name: Validate
-        run: sudo make validate remote=true
-
-  check-images:
-    name: Check Container Images
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout base branch
-        uses: actions/checkout@v4
-
-      - name: Checkout PR
-        run: gh pr checkout ${{ github.event.pull_request.number }}
-        env:
-            GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          if [[ "${{ github.ref }}" == refs/heads/release-v* ]]; then
+            echo "Validating remote release branch"
+            make validate remote=true
+          else
+            echo "Validating local branch"
+            make validate
+          fi
 
       - name: Check container images
         run: make check-images
         env:
           DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
           DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}
 
-  check-rc:
-    name: Check RC Images and Charts
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout base branch
-        uses: actions/checkout@v4
-
-      - name: Checkout PR
-        run: gh pr checkout ${{ github.event.pull_request.number }}
-        env:
-            GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
       - name: Check RC images and charts
         run: make check-rc
-        if: startsWith(github.ref, 'refs/heads/release-v')
+        if: startsWith(github.base_ref, 'refs/heads/release-v')