Temporarily disable Android cibuildwheel tests with warning (see #5913)

Author: rwgk

.github/workflows/tests-cibw.yml

@@ -70,6 +70,11 @@ jobs:
       if: contains(matrix.runs-on, 'macos')
       run: echo "CIBW_TEST_COMMAND=" >> "$GITHUB_ENV"
 
+    # NOTE: Android cibuildwheel tests are currently disabled.
+    # See https://github.com/pybind/pybind11/issues/5913.
+    - name: "NOTE: Android tests are disabled"
+      run: echo "::warning::Android cibuildwheel tests are disabled (CIBW_TEST_COMMAND is empty). See issue #5913."
+
     # https://github.blog/changelog/2024-04-02-github-actions-hardware-accelerated-android-virtualization-now-available/
     - name: Enable KVM for Android emulator
       if: contains(matrix.runs-on, 'ubuntu')
@@ -83,5 +88,6 @@ jobs:
     - uses: pypa/[email protected]
       env:
         CIBW_PLATFORM: android
+        CIBW_TEST_COMMAND: ""  # Temporarily disable Android tests; emulator setup is broken (see #5913).
       with:
         package-dir: tests