Add WASIp3 support

This adds wasi:{cli,clocks,filesystem,http,random,sockets}@0.3.0-rc-2025-08-15
support, including inbound and outbound HTTP requests.

I've smoke tested this manually with a few WASIp3 components and plan to port
over some or all of the existing WASIp2 tests.

TODO:
  - Port wasi:[email protected] tests
  - Add `Instrument::in_current_span` calls where necessary (e.g. in wasip3.rs)
  - Update to next release candidate once the `release-37.0.0` branch supports it
  - Switch to the final 37.0.0 release once it's available

Signed-off-by: Joel Dice <[email protected]>

Author: dicej