Fix actions/github-script invocation

Author: cortinico

.github/workflows/respond-on-new-pick-request.yml

@@ -14,7 +14,7 @@ jobs:
           MESSAGE: $(cat ./pick-request-hello-message.md)
         with: 
           script: |
-            github.issues.createComment({
+            github.rest.issues.createComment({
               issue_number: github.context.issue.number,
               owner: github.context.repo.owner,
               repo: github.context.repo.repo,