Potential fix for code scanning alert no. 69: Code injection

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

Author: arjunsuresh

.github/workflows/reassign-pr-commits.yml

@@ -16,9 +16,10 @@ jobs:
     steps:
       - name: Parse Username
         id: parse
+        env:
+          COMMENT_BODY: ${{ github.event.comment.body }}
         run: |
           # Get the text after /reassign. Default to PR creator if empty.
-          COMMENT_BODY="${{ github.event.comment.body }}"
           REQUESTED_USER=$(echo "$COMMENT_BODY" | awk '{print $2}')
           
           if [ -z "$REQUESTED_USER" ]; then