Forgot to update sdk to net 6

Author: synercoder

.github/workflows/dotnet-core.yml

@@ -33,7 +33,7 @@ jobs:
       - name: Setup .NET Core
         uses: actions/setup-dotnet@v1
         with:
-          dotnet-version: 5.0.x
+          dotnet-version: 6.0.x
       - name: Restore
         run: dotnet restore
       - name: Build
@@ -73,7 +73,7 @@ jobs:
       - name: Setup .NET Core
         uses: actions/setup-dotnet@v1
         with:
-          dotnet-version: 5.0.x
+          dotnet-version: 6.0.x
       - name: Create Release NuGet package
         run: |
           arrTag=(${GITHUB_REF//\// })