Fix YAML indentation and use global.json for SDK version

Co-authored-by: benaadams <1142958+benaadams@users.noreply.github.com>

Author: Copilot

.github/workflows/ci.yml

@@ -16,32 +16,32 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     steps:
-    - uses: actions/checkout@v4
+      - uses: actions/checkout@v4
 
-    - name: Setup .NET
-      uses: actions/setup-dotnet@v4
-      with:
-        dotnet-version: '10.0.x'
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          global-json-file: global.json
 
-    - name: Restore dependencies
-      run: dotnet restore
+      - name: Restore dependencies
+        run: dotnet restore
 
-    - name: Build
-      run: dotnet build --no-restore
+      - name: Build
+        run: dotnet build --no-restore
 
-    - name: Test (Common)
-      run: dotnet test test/Magma.Common.Facts/Magma.Common.Facts.csproj --no-build --verbosity normal
+      - name: Test (Common)
+        run: dotnet test test/Magma.Common.Facts/Magma.Common.Facts.csproj --no-build --verbosity normal
 
-    - name: Test (Link)
-      run: dotnet test test/Magma.Link.Facts/Magma.Link.Facts.csproj --no-build --verbosity normal
+      - name: Test (Link)
+        run: dotnet test test/Magma.Link.Facts/Magma.Link.Facts.csproj --no-build --verbosity normal
 
-    - name: Test (Internet.Ip)
-      run: dotnet test test/Magma.Internet.Ip.Facts/Magma.Internet.Ip.Facts.csproj --no-build --verbosity normal
+      - name: Test (Internet.Ip)
+        run: dotnet test test/Magma.Internet.Ip.Facts/Magma.Internet.Ip.Facts.csproj --no-build --verbosity normal
 
-    - name: Test (NetMap) - Linux only
-      if: runner.os == 'Linux'
-      run: dotnet test test/Magma.NetMap.Facts/Magma.NetMap.Facts.csproj --no-build --verbosity normal
+      - name: Test (NetMap) - Linux only
+        if: runner.os == 'Linux'
+        run: dotnet test test/Magma.NetMap.Facts/Magma.NetMap.Facts.csproj --no-build --verbosity normal
 
-    - name: Verify WinTun.TcpHost builds - Windows only
-      if: runner.os == 'Windows'
-      run: dotnet build sample/Magma.WinTun.TcpHost/Magma.WinTun.TcpHost.csproj --no-restore
+      - name: Verify WinTun.TcpHost builds - Windows only
+        if: runner.os == 'Windows'
+        run: dotnet build sample/Magma.WinTun.TcpHost/Magma.WinTun.TcpHost.csproj --no-restore