Fix json.dump/dumps() with IPv4Address

[romkey]

Change ipaddress_ipv4address_print() to quote the IPv4Address if kind is PRINT_JSON

Fixes issue 9768

Without fix:

With fix:

[dhalbert]

See #9768 (comment). We want to be compatible with CPython, which will not produce valid JSON with an ipaddress.IPv4Address object either. But instead we should print the address as IPv4Address(...), and similarly for IPv6Address.

[jepler]

This issue has been reported upstream at Micropython with the response that "This was a design decision. It's undefined behaviour if you serialise something that can't be serialised" micropython#1719

[jepler]

And documented in Micropython. we may not be reproducing this portion of the documentation in the circuitpython online docs. https://docs.micropython.org/en/latest/genrst/modules.html#json-module-does-not-throw-exception-when-object-is-not-serialisable

[dhalbert]

This is subsumed by #9789.