Run GH actions for creating changelog and publish to pypi only for tags and on main branch

Author: morrieinmaas

.github/workflows/create-release-changelog.yml

@@ -5,7 +5,7 @@ on:
 
 jobs:
   release:
-    if: startsWith(github.ref, 'refs/tags/')
+    if: ${{ startsWith(github.ref, 'refs/tags/') && github.event.base_ref == 'refs/heads/main' }}
     runs-on: ubuntu-latest
     steps:
       - name: Build Changelog

.github/workflows/python-publish.yml

@@ -9,9 +9,8 @@ on:
 
 jobs:
   deploy:
-
+    if: ${{ startsWith(github.ref, 'refs/tags/') && github.event.base_ref == 'refs/heads/main' }}
     runs-on: ubuntu-latest
-
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python