Migrate wasi-common to `wasmtime::error` (#12293)

* Migrate wiggle and wiggle generate to `wasmtime::error`

* Fix testing `wiggle` and `wiggle-test` in isolation

When doing plain old `cargo test -

Migrate wasi-common to `wasmtime::error` (#12293)

* Migrate wiggle and wiggle generate to `wasmtime::error`

* Fix testing `wiggle` and `wiggle-test` in isolation

When doing plain old `cargo test -p wiggle` (or `wiggle-test`) the test would
fail due to linking errors because Wasmtime's `std` cargo feature (and maybe
others) wasn't being enabled. The crate's tests would pass when run as part of
the whole workspace, however, because of cargo feature resolution and other
crates that enabled the necessary features, which is why CI is green.

* Remove direct anyhow dependency in wiggle-test

* Migrate wasi-nn to `wasmtime::error`

* Migrate wasi-keyvalue to `wasmtime::error`

* Migrate wasi-io to `wasmtime::error`

* Migrate wasi-http to `wasmtime::error`

* Migrate wasi-config to `wasmtime::error`

* Migrate wasi-common to `wastime::error`

This is another interesting one because wasi-common is used internally to
Wasmtime but also by other projects. Therefore, rather than using
`wastime::error::*` and making `wasmtime` a hard dependency, we use just
`wasmtime_environ::error`.

* cargo fmt

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Update Wasmtime to the 2024 Rust Edition (#10806)

* Update Wasmtime to the 2024 Rust Edition

Now that our MSRV supports the 2024 edition it's possible to make this
switch. This commit moves Wasmtim

Update Wasmtime to the 2024 Rust Edition (#10806)

* Update Wasmtime to the 2024 Rust Edition

Now that our MSRV supports the 2024 edition it's possible to make this
switch. This commit moves Wasmtime to the 2024 Edition to keep
up-to-date with Rust idioms and access many of the edition features
exclusive to the 2024 edition.

prtest:full

* Reformat with the 2024 edition

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