Upgrade GitHub Actions to version 5

Author: stidsborg

.github/workflows/dotnet.yml

@@ -29,8 +29,8 @@ jobs:
               compose-service: sql-server-db
               db-name: sqlserver
       steps:
-        - uses: actions/checkout@v4
-        - uses: actions/setup-dotnet@v4
+        - uses: actions/checkout@v5
+        - uses: actions/setup-dotnet@v5
           with:
             dotnet-version: '10.0.x'
         - run: dotnet build Cleipnir.ResilientFunctions.sln