[ci] Check for full repository name in actions (#7038)

This allows forks of allwpilib owned by wpilibsuite to exist without patching the workflows.

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

@@ -15,6 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Comment on PR
+        if: github.repository == 'wpilibsuite/allwpilib'
         uses: actions/github-script@v7
         with:
           script: |