v4.2.1

• 🐛 Respects the NuGet package sources configured on the machine when installing CPython on Windows, instead of always falling back to nuget.org (#2966)
• 🐛 Fixes a NameError on Pyodide when an already-compatible wheel was reused, which made the test step fail (#2968)
• 🛠 Updates the Android Python versions, and the Android testbed's Gradle version, making it compatible with Java 25 (#2962)
• 🛠 Updates dependencies including CPython 3.15.0rc2 (#2965, #2970, #2976, #2981, #2985)