use dotnet 8.x

Author: chriskapp

.github/workflows/ci.yml

@@ -13,7 +13,7 @@ jobs:
       - name: Setup dotnet
         uses: actions/setup-dotnet@v3
         with:
-          dotnet-version: '6.0.x'
+          dotnet-version: '8.x'
       - name: Install dependencies
         run: dotnet restore
       - name: Build
@@ -33,7 +33,7 @@ jobs:
       - name: Setup dotnet
         uses: actions/setup-dotnet@v3
         with:
-          dotnet-version: '6.0.x'
+          dotnet-version: '8.x'
       - name: Install dependencies
         run: dotnet restore
       - name: Build

.github/workflows/publish.yml

@@ -14,7 +14,7 @@ jobs:
       - name: Setup .NET
         uses: actions/setup-dotnet@v3
         with:
-          dotnet-version: '7.0.102'
+          dotnet-version: '8.x'
       - name: Create and push NuGet package
         working-directory: ./src/Sdkgen.Client
         run: |