Only publish API docs on release

.github/workflows/apidocs.yml

@@ -1,7 +1,8 @@
 name: Generate and deploy API documentation
+
 on:
-  push:
-    branches: ["master"]
+  release:
+    types: [published]
   workflow_dispatch:
 
 permissions:
@@ -27,7 +28,7 @@ jobs:
         uses: actions/checkout@v3
       - uses: actions/setup-python@v4
         with:
-          python-version: '3.9' 
+          python-version: "3.9"
       - run: pip install -e .
       - run: spoolman_docs
       - name: Setup Pages
@@ -35,7 +36,7 @@ jobs:
       - name: Upload artifact
         uses: actions/upload-pages-artifact@v1
         with:
-          path: 'docs/'
+          path: "docs/"
       - name: Deploy to GitHub Pages
         id: deployment
         uses: actions/deploy-pages@v2