chore: updating dotnet CI

Author: waggledans

.github/workflows/dotnet.yml

@@ -25,13 +25,13 @@ jobs:
       #fail-fast: false
       matrix:
         os: [ windows-latest, macOS-latest ]
-        dotnet: [ '5.0.x' ]
+        dotnet: [ '6.0.x' ]
     runs-on: ${{ matrix.os }}
 
     steps:
       - uses: actions/checkout@v4
       - name: Setup .NET
-        uses: actions/setup-dotnet@v1
+        uses: actions/setup-dotnet@v4
         with:
           dotnet-version: ${{ matrix.dotnet }}
       - name: Test