updated to .NET 8.0

Author: alyiox

.github/workflows/ci.yml

@@ -13,12 +13,12 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Setup .NET
-        uses: actions/setup-dotnet@v1
+        uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: 6.0.x
+          dotnet-version: 8.0.x
       - name: Test
-        run: dotnet test /p:CollectCoverage=true /p:CoverletOutputFormat=opencover
+        run: dotnet test test/Alyio.Extensions.Caching.Tests/
       - name: Pack
         run: dotnet pack -c release