Attempt to fix the pr MergeRequested workflow (#26157)

We are getting the following error in our workflow:
```
GraphQL: Resource not accessible by integration (repository.pullRequest.projectCards.nodes)
```
When we call `gh pr edit`

Based on the issue at cli/cli#6274 we can try adding the repository-projects: read permission to workaround this.

Author: weshaggard

.github/workflows/comment.yml

@@ -4,7 +4,9 @@ on:
   issue_comment:
     types: [created]
 
-permissions: {}
+permissions:
+  pull-requests: write
+  repository-projects: read
 
 jobs:
   comment-handler: