Migrate from Appveyor to GitHub Actions Windows runners

Author: canova

.github/workflows/ci.yml

@@ -22,26 +22,36 @@ jobs:
         run: yarn lint
 
   tests:
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
     steps:
       - name: Checkout code
         uses: actions/checkout@v5
 
       - name: Setup Node.js and install dependencies
         uses: ./.github/actions/setup-node-and-install
 
+      - name: Display versions
+        run: yarn versions
+
       - name: Run tests
         # We use workerIdleMemoryLimit to work around a memory issue with node.
         # See https://github.com/facebook/jest/issues/11956
         run: yarn test --coverage --logHeapUsage -w=4 --workerIdleMemoryLimit=1.5G
 
       - name: Upload coverage to Codecov
+        if: matrix.os == 'ubuntu-latest'
         uses: codecov/codecov-action@v5
         with:
           fail_ci_if_error: false
 
   build-prod:
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
     steps:
       - name: Checkout code
         uses: actions/checkout@v5