Update gha-pr-add-project.yml

Author: mgrover1

.github/workflows/gha-pr-add-project.yml

@@ -5,6 +5,9 @@ on:
     types:
       - labeled
 
+permissions:
+  contents: write
+  pull-requests: write
 
 jobs:
   auto_new_resource_add_pr:
@@ -37,4 +40,4 @@ jobs:
             A project that is contributed by the user through issue submission. It has triggered a GitHub Action workflow that generate this PR. Refer to issue #${{ github.event.issue.number }}.
             Merging this PR will close #${{ github.event.issue.number }}.
           delete-branch: true
-          labels: new project
+          labels: new project