Update workflow dotnet.yml

Author: liquizard

.github/workflows/dotnet.yml

@@ -2,9 +2,9 @@ name: .NET
 
 on:
   push:
-    branches: [ master ]
+    branches: [ main ]
   pull_request:
-    branches: [ master ]
+    branches: [ main ]
 
 jobs:
   build:
@@ -22,4 +22,4 @@ jobs:
         uses: coverallsapp/github-action@v1.1.2
         with:
           github-token: ${{ secrets.github_token }}
-          path-to-lcov: code_coverage/results.info 
+          path-to-lcov: code_coverage/results.info