Support component model `map<K, V>`

[celarye]

A while back the component model introduced map<K, V> (WebAssembly/component-model#554). I have a WIT interface which imports this, which I think might be the cause for the following componentize-py panic:

❯ uvx componentize-py -d ../../wit/ bindings bindings

thread '<unnamed>' (131450) panicked at src/summary.rs:343:29:
not yet implemented: Map(String, Id(Id { idx: 78 }))
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
Traceback (most recent call last):
  File "/Users/celarye/.cache/uv/archive-v0/6eNpfc-k7Gj2SrP-/bin/componentize-py", line 12, in <module>
    sys.exit(script())
             ~~~~~~^^
pyo3_runtime.PanicException: not yet implemented: Map(String, Id(Id { idx: 78 }))

componentize-py/src/summary.rs

Line 343 in 874d8af

kind => todo!("{kind:?}"),