ci: Run actions that need secrets.GITHUB_TOKEN only on rustic-rs org

Signed-off-by: simonsan <[email protected]>

Author: simonsan

.github/workflows/deploy.yml

@@ -7,8 +7,9 @@ on:
 
 jobs:
   build:
+    if: ${{ github.repository_owner == 'rustic-rs' && github.ref == 'refs/heads/main' }}
+    name: Build and deploy
     runs-on: ubuntu-latest
-    if: github.ref == 'refs/heads/main'
     steps:
       - name: checkout
         uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4