Update CI workflow for .NET 10.0

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: wjlafrance

.github/workflows/dotnet-core.yml

@@ -1,4 +1,4 @@
-name: .NET Core
+name: .NET
 
 on:
   push:
@@ -15,13 +15,13 @@ jobs:
       working-directory: ./src/Atlasd
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Checkout submodules
       run: git submodule update --init --recursive
-    - name: Setup .NET Core
-      uses: actions/setup-dotnet@v1
+    - name: Setup .NET
+      uses: actions/setup-dotnet@v4
       with:
-        dotnet-version: 3.1.301
+        dotnet-version: '10.0.x'
     - name: Install dependencies
       run: dotnet restore
       working-directory: ${{env.working-directory}}