build: fix REST API call and permissions for thanks you note

The github action needs to use the correct REST API and the write
permission to be able to comment on the issue/pull request.

Signed-off-by: Daniel Wagner <[email protected]>

Author: igaw

.github/workflows/thanks.yml

@@ -1,3 +1,4 @@
+---
 name: Comment on Merged PR
 
 on:
@@ -9,6 +10,9 @@ jobs:
   comment-on-merge:
     if: github.event.pull_request.merged == true
     runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      pull-requests: write
 
     steps:
       - name: Comment on merged PR
@@ -18,7 +22,7 @@ jobs:
             const prNumber = context.payload.pull_request.number;
             const comment = 'Thanks for your contribution!';
 
-            await github.issues.createComment({
+            await github.rest.issues.createComment({
               owner: context.repo.owner,
               repo: context.repo.repo,
               issue_number: prNumber,