fix: regrant pr permissions

Author: jgravois

.github/workflows/terraform-plan.yml

@@ -8,8 +8,9 @@ on:
       - ".github/workflows/terraform-plan.yml"
 
 permissions:
-  id-token: write
   contents: read
+  id-token: write
+  pull-requests: write
 
 jobs:
   terraform-plan: