Update DotNET-build.yml

Author: followynne

.github/workflows/DotNET-build.yml

@@ -30,20 +30,16 @@ jobs:
   ubuntu-latest:
     name: ubuntu-latest
     runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        dotnet-version: [ '6.0.x', '7.0.x', '8.0.x']
 
     steps:
-      - uses: actions/checkout@v4
-      - name: Setup dotnet ${{ matrix.dotnet-version }}
+      - name: Setup dotnet 6
         uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: ${{ matrix.dotnet-version }}
-      # You can test your matrix by printing the current dotnet version
-      - name: Display dotnet version
-        run: dotnet --version
-    
+          dotnet-version: '6.0.x'
+      - name: Setup dotnet 7
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: '7.0.x'
       - uses: actions/setup-java@v4
         with:
           distribution: 'temurin'