Disable Android cibuildwheel tests only on ubuntu-latest (see #5913, #5914)

Author: rwgk

.github/workflows/tests-cibw.yml

@@ -70,6 +70,14 @@ jobs:
       if: contains(matrix.runs-on, 'macos')
       run: echo "CIBW_TEST_COMMAND=" >> "$GITHUB_ENV"
 
+    # Temporarily disable Android tests on ubuntu-latest due to emulator issues.
+    # See https://github.com/pybind/pybind11/issues/5913.
+    - name: "NOTE: Android tests are disabled on ubuntu-latest"
+      if: contains(matrix.runs-on, 'ubuntu')
+      run: |
+        echo "CIBW_TEST_COMMAND=" >> "$GITHUB_ENV"
+        echo '::warning::Android cibuildwheel tests are disabled on ubuntu-latest (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')