[ci] Fix robotpy PR commenting (#6723)

.github/workflows/command-robotpy-pr.yml

@@ -1,7 +1,7 @@
 name: Comment on PR for robotpy
 
 on:
-  pull_request:
+  pull_request_target:
     types:
       - opened
     paths:
@@ -9,12 +9,14 @@ on:
 
 jobs:
   comment:
+    permissions:
+      pull-requests: write
+
     runs-on: ubuntu-latest
     steps:
       - name: Comment on PR
         uses: actions/github-script@v7
         with:
-          github-token: ${{ secrets.COMMENT_COMMAND_PAT_TOKEN }}
           script: |
             github.rest.issues.createComment({
                 issue_number: context.issue.number,