Add format check to CI pipeline

Author: gunndabad

.config/dotnet-tools.json

@@ -0,0 +1,13 @@
+{
+  "version": 1,
+  "isRoot": true,
+  "tools": {
+    "dotnet-format": {
+      "version": "5.1.250801",
+      "commands": [
+        "dotnet-format"
+      ],
+      "rollForward": false
+    }
+  }
+}

.github/workflows/build.yml

@@ -19,9 +19,15 @@ jobs:
       with:
         fetch-depth: 0  # Important for minver to create the right version number
 
+    - name: Install tools
+      run: dotnet tool restore
+
     - name: Restore
       run: dotnet restore
 
+    - name: Format
+      run: dotnet dotnet-format --verify-no-changes
+
     - name: Build
       run: dotnet build --configuration Release --no-restore