Update auto-add-labels.yml Skip Labeler from Dependabot forks (#775)

Author: daveroge

.github/workflows/auto-add-labels.yml

@@ -22,6 +22,8 @@ jobs:
       contents: read
       pull-requests: write
     runs-on: ubuntu-latest
+    # Only run for PRs from the main repository (skip forks like Dependabot)
+    if: github.event.pull_request.head.repo.full_name == github.repository
     steps:
       - uses: actions/labeler@634933edcd8ababfe52f92936142cc22ac488b1b  # v6.0.1
         with: