Switch branch for push-generate-readme workflow

.github/workflows/push_main_ci.yml

@@ -2,14 +2,14 @@ name: VoronUsers Push Main CI
 on:
   push:
     branches:
-      - 'master'
+      - 'main'
 jobs:
     setup_python:
       name: Rebuild repo caches
       uses: VoronDesign/.github/.github/workflows/prepare-environment.yml@v1
       with:
         apt-packages: "admesh, libadmesh-dev"
-        pip-packages: "admesh pyyaml imagekitio git+https://github.com/ChristophSchranz/Tweaker-3.git"
+        pip-packages: "admesh imagekitio git+https://github.com/ChristophSchranz/Tweaker-3.git"
         python-cache-key: voronusers-python-cache
     preview_readme:
         name: Generate README