ENH: detect Python x64 on Windows arm64 cross builds

.github/workflows/debug.yml

@@ -0,0 +1,55 @@
+# SPDX-FileCopyrightText: 2021 The meson-python developers
+#
+# SPDX-License-Identifier: MIT
+
+name: debug
+
+on:
+  push:
+    branches:
+      - main
+      - release-*
+  pull_request:
+    branches:
+      - main
+      - release-*
+
+permissions: {}
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+jobs:
+  test:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: windows-11-arm
+            python: '3.14'
+            architecture: x64
+          - os: windows-11-arm
+            python: '3.14'
+            architecture: arm64
+          - os: windows-latest
+            python: '3.14'
+          - os: windows-latest
+            python: '3.14'
+            architecture: x86
+
+    steps:
+      - uses: actions/checkout@v7
+        with:
+          persist-credentials: false
+
+      - uses: actions/setup-python@v7
+        with:
+          python-version: ${{ matrix.python }}
+          architecture: ${{ matrix.architecture }}
+          allow-prereleases: true
+
+      - run: python -m pip install .
+
+      - run: python -c 'import mesonpy._windows as w; w.detect()'