set up .NET versions

[git-p4: depot-paths = "//dev/main.net/": change = 114093]

Author: fryp

.github/workflows/build.yml

@@ -36,6 +36,14 @@ jobs:
     - name: Checkout
       uses: actions/checkout@v3
 
+      # Set up .NET versions
+    - name: Set up dotnet
+      uses: actions/setup-dotnet@v4
+      with:
+        dotnet-version: |
+          6.x
+          8.x
+
     # Clean
     - name: Clean
       run: dotnet nuget locals all --clear
@@ -59,6 +67,14 @@ jobs:
     - name: Checkout
       uses: actions/checkout@v3
 
+    # Set up .NET versions
+    - name: Set up dotnet
+      uses: actions/setup-dotnet@v4
+      with:
+        dotnet-version: |
+          6.x
+          8.x
+
     # Set up Java 17
     - name: Set up JDK
       uses: actions/setup-java@v3