dotnet-format is built-in .net6 now :)

See dotnet/format#1268

Author: kzu

.github/workflows/build.yml

@@ -39,9 +39,8 @@ jobs:
 
       - name: ✓ ensure format
         run: |
-          dotnet tool update -g dotnet-format --version 5.0.*
           dotnet restore
-          dotnet format --check -v:diag
+          dotnet format --verify-no-changes -v:diag
 
   build:
     name: build-${{ matrix.os }}