Update dotnet targets

Author: BenjaminMichaelis

.github/workflows/dotnet3.1Build.yml .github/workflows/dotnetBuild.yml.github/workflows/dotnet3.1Build.yml renamed to .github/workflows/dotnetBuild.yml

@@ -12,14 +12,20 @@ jobs:
     runs-on: windows-latest
     steps:
     - uses: actions/checkout@v2
-    - name: Setup .NET Core SDK 5.0
+    - name: Setup .NET 5.0
       uses: actions/setup-dotnet@v1
       with:
           dotnet-version: '5.0.x'
+    - name: Setup .NET Core 3.1
+      uses: actions/setup-dotnet@v1
+      with:
+          dotnet-version: '3.1.x'
     - name: Get Directory
       run: pwd
+    - name: Install dependencies
+      run: dotnet restore
     - name: Build
-      run: dotnet build -p:Version="${{ env.version }}"
+      run: dotnet build -p:Version="${{ env.version }}" --no-restore
     - name: Test
       run: dotnet test --no-build --verbosity normal
     - name: dotnet pack