Fix: CI-Build not working due to wrong branch in config (#310)

.github/workflows/main.yml

@@ -7,12 +7,12 @@ env:
   # Compile in parallel where possible.
   CL: /MP
 
-# Triggers the workflow on push or pull request events for the master branch.
+# Triggers the workflow on push or pull request events for the main branch.
 on:
   push:
-    branches: [ master ]
+    branches: [ main ]
   pull_request:
-    branches: [ master ]
+    branches: [ main ]
 
 jobs:
   build: