ci: of course I forget

Author: Jan0660

.github/workflows/build.yaml

@@ -7,10 +7,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - name: Setup .NET 6 SDK
+      - name: Setup .NET SDK
         uses: actions/setup-dotnet@v3
         with:
-          dotnet-version: 6.0.x
+          dotnet-version: 8.0.x
       - name: restore
         run: dotnet restore
       - name: build
@@ -22,10 +22,10 @@ jobs:
     if: startsWith(github.ref, 'refs/tags/')
     steps:
       - uses: actions/checkout@v3
-      - name: Setup .NET 6 SDK
+      - name: Setup .NET SDK
         uses: actions/setup-dotnet@v3
         with:
-          dotnet-version: 6.0.x
+          dotnet-version: 8.0.x
       - name: pack
         run: dotnet pack --configuration Release -o ./bin/nupkg
       - name: push