add call_bound and call_method_bound

[davidhewitt]

Adds Py::call_bound and Py::call_method_bound, which take kwargs: Option<&Bound<'_, PyDict>>.

For &PyAny, I decided not to add these new variants as instead the correct change should be to switch to Bound<'_, PyAny>.

Similarly I changed the argument in PyAnyMethods::call and PyAnyMethods::call_method without introducing new variants.

The other functions like call0 don't need changing as they don't take an Option<&PyDict> argument.

[davidhewitt]

Uff will fixup doctests later, ideally this evening.

[davidhewitt]

(This one is ready for review as far as I'm concerned; the doctests look to be passing now 🎉)

[codspeed-hq]

CodSpeed Performance Report

Merging #3711 will improve performances by 10.08%

_{Comparing davidhewitt:call-bound (50e33d8) with main (f2eb121)}

🎉 Hooray! pytest-codspeed just leveled up to 2.2.0!

A heads-up, this is a breaking change and it might affect your current performance baseline a bit. But here's the exciting part - it's packed with new, cool features and promises improved result stability 🥳!
Curious about what's new? Visit our releases page to delve into all the awesome details about this new version.

Summary

⚡ 1 improvements
✅ 77 untouched benchmarks

Benchmarks breakdown

	Benchmark	main	davidhewitt:call-bound	Change
⚡	list_via_extract	303.3 ns	275.6 ns	+10.08%