removed older net version setup and becnhmarks

Author: Petr Sramek

.github/workflows/dotnet.yml

@@ -16,22 +16,6 @@ jobs:
 
     steps:
     - uses: actions/checkout@v3
-    - name: Setup .NET 5
-      uses: actions/setup-dotnet@v3
-      with:
-        dotnet-version: 5.x
-    - name: Setup .NET 6
-      uses: actions/setup-dotnet@v3
-      with:
-        dotnet-version: 6.x
-    - name: Setup .NET 7
-      uses: actions/setup-dotnet@v3
-      with:
-        dotnet-version: 7.x
-    - name: Setup .NET 8
-      uses: actions/setup-dotnet@v3
-      with:
-        dotnet-version: 8.x
     - name: Setup .NET 9
       uses: actions/setup-dotnet@v3
       with:
@@ -42,18 +26,6 @@ jobs:
       run: dotnet build --no-restore
     - name: Test
       run: dotnet test --no-build --verbosity normal
-    - name: Benchmark (.NET 5)
-      working-directory: ./benchmarks/PolylineAlgorithm.Benchmarks
-      run: dotnet run -c Release --framework net5.0
-    - name: Benchmark (.NET 6)
-      working-directory: ./benchmarks/PolylineAlgorithm.Benchmarks
-      run: dotnet run -c Release --framework net6.0
-    - name: Benchmark (.NET 7)
-      working-directory: ./benchmarks/PolylineAlgorithm.Benchmarks
-      run: dotnet run -c Release --framework net7.0
-    - name: Benchmark (.NET 8)
-      working-directory: ./benchmarks/PolylineAlgorithm.Benchmarks
-      run: dotnet run -c Release --framework net8.0
     - name: Benchmark (.NET 9)
       working-directory: ./benchmarks/PolylineAlgorithm.Benchmarks
       run: dotnet run -c Release --framework net9.0