iOS Pythonista with Python 3.10 and support for pandas

Pythonista 3 3.4 (340006) is ready to test on iOS.

What to Test:

New in 3.4: * Support for Python 3.10 * Removed Python 2.7 support * Shortcuts integration: You can now use Pythonista scripts as actions in Apple's Shortcuts app, without launching the app. * Improved documentation with modernized layout, dark mode, and additional content about third-party libraries. * Added pandas and updated various other third-party modules to more recent versions. Please see "What's New in Pythonista" in the in-app documentation for more detailed release notes.