Don't run analyzers/codefixers in format

Specifically run just whitespace and style format verification.

Author: kzu

.github/workflows/build.yml

@@ -90,4 +90,6 @@ jobs:
           fetch-depth: 0
 
       - name: ✓ ensure format
-        run: dotnet format --verify-no-changes -v:diag --exclude ~/.nuget
+        run: |
+          dotnet format whitespace --verify-no-changes -v:diag --exclude ~/.nuget
+          dotnet format style --verify-no-changes -v:diag --exclude ~/.nuget