Only render docs on main branch

Author: sebromero

.github/workflows/render-documentation.yml

@@ -25,4 +25,5 @@ jobs:
     with:
       source-path: './src'
       target-path: './docs/api.md'
-      fail-on-warnings: true
+      fail-on-warnings: true
+      commit: ${{ github.event_name != 'pull_request' }} # Only commit changes if not a PR