Fix branch references from 'main' to 'master' in GitHub workflows

Corrects workflow trigger conditions to properly match the repository's
master branch instead of main:

- wheels.yml: Fix pull_request branches, comments, and publish condition
- main.yml: Fix push and pull_request branch triggers

This resolves the issue where publish-github-releases job was not
triggering on master branch pushes due to incorrect branch reference.

Author: oberstet

.github/workflows/main.yml

@@ -2,9 +2,9 @@ name: main
 
 on:
   push:
-    branches: [main]
+    branches: [master]
   pull_request:
-    branches: [main]
+    branches: [master]
   workflow_dispatch:
 
 env:

.github/workflows/wheels.yml

@@ -5,9 +5,9 @@ on:
   push:
     branches: ["**"]
   pull_request:
-    branches: [main]
+    branches: [master]
 
-  # Publish to GitHub Releases when merged to main
+  # Publish to GitHub Releases when merged to master
   # Publish to PyPI when tagged
   workflow_dispatch:
 
@@ -159,9 +159,7 @@ jobs:
     name: Publish to GitHub Releases
     needs: build-wheels
     runs-on: ubuntu-latest
-    if:
-      github.ref == 'refs/heads/main' && github.event_name ==
-      'push'
+    if: github.ref == 'refs/heads/master' && github.event_name == 'push'
 
     steps:
       - name: Download all wheel artifacts