ci: skip chromatic on forks

Author: rzzf

.github/workflows/chromatic.yml

@@ -17,7 +17,7 @@ jobs:
   chromatic:
     name: 📚 Chromatic
     runs-on: ubuntu-24.04-arm
-    if: ${{ github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name == github.repository }}
+    if: ${{ github.repository == 'npmx-dev/npmx.dev' && (github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name == github.repository) }}
 
     steps:
       - name: ☑️ Checkout