fix(security): autofix Template Injection in GitHub Workflows Action (#14228)

Co-authored-by: aikido-autofix[bot] <119856028+aikido-autofix[bot]@users.noreply.github.com>

Author: aikido-autofix[bot]

.github/workflows/on-pr-closed.yml

@@ -25,12 +25,16 @@ jobs:
       issue_number: ${{ steps.get_issue_number.outputs.ticketNumber }}
     steps:
       - name: echo PR data
+        env:
+          PR_NUMBER: ${{ github.event.pull_request.number }}
+          PR_URL: ${{ github.event.pull_request.html_url }}
+          PR_BODY: ${{ github.event.pull_request.body }}
         run: |
-          echo "PR Number: ${{ github.event.pull_request.number }}"
-          echo "PR URL: ${{ github.event.pull_request.html_url }}"
+          echo "PR Number: $PR_NUMBER"
+          echo "PR URL: $PR_URL"
           cat <<EOF
           PR Body:
-          ${{ github.event.pull_request.body }}
+          $PR_BODY
           EOF
       - name: Determine issue number
         id: get_issue_number