Only update release when appropriate

.github/workflows/main.yml

@@ -1,8 +1,5 @@
 name: Main
-on:
-  push:
-  workflow_dispatch:
-  workflow_call:
+on: [push, pull_request, workflow_dispatch, workflow_call]
 
 permissions:
   contents: write
@@ -64,6 +61,7 @@ jobs:
           path: dist/pumpkin_api_py*
 
       - name: Upload artifacts to release
+        if: startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/master'
         uses: ncipollo/release-action@v1
         with:
           tag: ${{ env.GITHUB_RELEASE_TAG }}