Update sync-branches-through-pr-2.yaml

.github/workflows/sync-branches-through-pr-2.yaml

@@ -5,11 +5,11 @@ on:
   workflow_dispatch:
     inputs:
       source:
-        description: "Source branch: From"
+        description: "From:"
         required: true
         type: string
       target:
-        description: "Target branch: To"
+        description: "To:"
         required: true
         type: string
 
@@ -58,13 +58,19 @@ jobs:
         # Special handling for the Makefile
         MAKEFILE="components/odh-notebook-controller/Makefile"
         if [[ -f "$MAKEFILE" && "$(git status --porcelain=v1 2>/dev/null | grep -c "$MAKEFILE")" -gt 0 ]]; then
-          if git diff --ours "$MAKEFILE" | grep -q 'KF_TAG \?='; then
-            echo "Change in Makefile is limited to KF_TAG. Keeping target branch version."
-            git checkout --ours "$MAKEFILE"
-          else
-            echo "Changes in Makefile are not limited to KF_TAG. Applying incoming changes."
-            git checkout --theirs "$MAKEFILE"
+          echo "Resolving conflicts in $MAKEFILE while preserving KF_TAG."
+
+          # Extract the KF_TAG value from the target branch
+          KF_TAG_TARGET=$(git show :2:"$MAKEFILE" | grep '^KF_TAG \?=' || echo "")
+          
+          # Apply incoming changes
+          git checkout --theirs "$MAKEFILE"
+          
+          # Restore the KF_TAG line from the target branch
+          if [[ -n "$KF_TAG_TARGET" ]]; then
+            sed -i "s/^KF_TAG \?=.*/$KF_TAG_TARGET/" "$MAKEFILE"
           fi
+
           git add "$MAKEFILE"
         fi
 
@@ -90,18 +96,3 @@ jobs:
           --body ":robot: This is an automated PR generated by `/.github/workflows/sync-branches-through-pr.yaml`" \
           --base "${{ github.event.inputs.target }}" \
           --head "${SYNC_BRANCH}"
-
-  delete-branch:
-    if: ${{ github.event_name == 'pull_request' && github.event.action == 'closed' && github.event.pull_request.merged == true }}
-    runs-on: ubuntu-latest
-
-    steps:
-    - name: Delete branch
-      env:
-        GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      run: |
-        BRANCH_NAME=$(echo "${{ github.event.pull_request.head.ref }}")
-        REPO=${{ github.repository }}
-        echo "Deleting branch ${BRANCH_NAME} from ${REPO}..."
-        gh api -X DELETE \
-          repos/${REPO}/git/refs/heads/${BRANCH_NAME}