Replace deprecated set-output calls (#13858)

https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/

.github/workflows/build_pull_request.yml

@@ -56,8 +56,8 @@ jobs:
               break
             fi
           done
-          echo "::set-output name=isIndividualChanged::$isIndividualChanged"
-          echo "::set-output name=isMultisrcChanged::$isMultisrcChanged"
+          echo "isIndividualChanged=$isIndividualChanged" >> $GITHUB_OUTPUT
+          echo "isMultisrcChanged=$isMultisrcChanged" >> $GITHUB_OUTPUT
 
       - name: Generate multisrc sources
         if: ${{ steps.parse-changed-files.outputs.isMultisrcChanged == '1' }}