fix: disallow releaser-pleaser on forks (#139)

Author: Davidonium

.github/workflows/releaser-pleaser.yml

@@ -15,6 +15,8 @@ concurrency:
 
 jobs:
   releaser-pleaser:
+    # Do not run on forks.
+    if: github.repository == 'qdrant/qcloud-cli'
     runs-on: ubuntu-latest
     permissions:
       contents: write