Update .github/workflows/codebuild-pr-build.yml

Co-authored-by: amazon-q-developer[bot] <208079219+amazon-q-developer[bot]@users.noreply.github.com>

Author: pahud

.github/workflows/codebuild-pr-build.yml

@@ -94,8 +94,8 @@ jobs:
         if: github.event_name == 'pull_request'
         run: |
           mkdir -p ./pr
-          echo ${{ github.event.pull_request.number }} > ./pr/pr_number
-          echo ${{ github.event.pull_request.head.sha }} > ./pr/pr_sha
+          echo "${{ github.event.pull_request.number }}" > ./pr/pr_number
+          echo "${{ github.event.pull_request.head.sha }}" > ./pr/pr_sha
 
       - name: Upload PR info artifact
         if: github.event_name == 'pull_request'