fix(ci): limit maintainer scope

Author: StarWishsama

.github/workflows/package-maintainer.yml

@@ -10,6 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/delete-package-versions@v4
+      if: github.event.repository.name == 'Slimefun-Secret'
       with: 
         package-name: 'com.github.slimefun.slimefun'
         package-type: 'maven'