fixup! pr-checks: Check if rebase is required

Author: chaitu236

.github/workflows/pr-checks.yml

@@ -44,7 +44,7 @@ jobs:
           common_ancestor=$(git merge-base HEAD origin/${{ github.base_ref }})
           branch_head=$(git log -1 --format=%H origin/${{ github.base_ref }})
 
-          echo 'Common ancestor: $common_ancestor, ${{ github.base_ref }} head: $branch_head'
+          echo "Common ancestor: $common_ancestor, ${{ github.base_ref }} head: $branch_head"
           [ $common_ancestor == $branch_head ]
 
       - name: Run checkpatch.pl