Migrate from AppVeyor to GitHubActions

.github/workflows/CI.yml

@@ -0,0 +1,31 @@
+name: CI
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  buildAndTest:
+
+    runs-on:
+    - windows-latest
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: Setup .NET
+      uses: actions/setup-dotnet@v3
+      with:
+        dotnet-version: 6.0.428
+    - name: Build & Run Tests
+      run: |
+        .\build.cmd
+    - name: Upload artifact (bin)
+      uses: actions/upload-artifact@v4
+      with:
+        name: bin
+        path: bin
+    - name: Upload artifact (dist)
+      uses: actions/upload-artifact@v4
+      with:
+        name: dist
+        path: dist

build.cmd

@@ -2,9 +2,9 @@
 rem change the target via -t, e.g.:
 rem build -t PackNuget
 cls
-dotnet tool restore
-dotnet paket restore
+dotnet tool restore || exit /b 1
+dotnet paket restore || exit /b 1
 rem set FAKE_SDK_RESOLVER_CUSTOM_DOTNET_VERSION=8.0
 rem Build with Fake or FSI:
-dotnet fake run build.fsx %*
+dotnet fake run build.fsx %* || exit /b 1
 rem dotnet fsi build.fsx %*