update method

Author: eleanorjboyd

.github/workflows/pr-file-check.yml

@@ -19,7 +19,7 @@ jobs:
         uses: actions/github-script@v6
         with:
           script: |
-            github.issues.addLabels({
+            github.rest.issues.addLabels({
               owner: context.repo.owner,
               repo: context.repo.repo,
               issue_number: context.issue.number,