chore(deps): Update Rust crate ctor to 0.12.0 (#185)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [ctor](https://redirect.github.com/mmastrac/rust-ctor) | dependencies
| minor | `0.8.0` → `0.12.0` |

---

### Release Notes

<details>
<summary>mmastrac/rust-ctor (ctor)</summary>

###
[`v0.12.0`](https://redirect.github.com/mmastrac/rust-ctor/blob/HEAD/CHANGELOG.md#ctor-0120---2026-04-30)

##### Added

- Support for `#[ctor]` on `impl` items. To be valid, the `fn` must have
no
`self` parameter and must not access any generic parameters from the
outer
  item.
- Added `life before main` documentation to all crates.
- `early` and `late` priority values are now supported on all platforms.

##### Removed

- deprecated `dtor` feature and crate dependency from `ctor` crate (use
the `dtor` crate directly).

##### Fixed

- AIX uses "standard" priority values from 0 to 999, early and late
(mapped to

[`8000000`](https://redirect.github.com/mmastrac/rust-ctor/commit/80000000)
to
[`8000099`](https://redirect.github.com/mmastrac/rust-ctor/commit/80000999)).

##### Changed

- If the `priority` feature is enabled, `ctor` priority sorting is now
stable
and consistent across platforms: `early`/`0`/`unspecified`, then `1 <= N
<
  1000`, then `late`.
- If a `link_section` or `export_name_prefix` is specified, a `priority`
value
  must not be specified (now a compiler error).
- Migrated to using the `linktime-proc-macro` crate for proc-macro
support.

###
[`v0.11.1`](https://redirect.github.com/mmastrac/rust-ctor/blob/HEAD/CHANGELOG.md#ctor-0111---2026-04-28)

##### Changed

- Deprecated \`\`dtor`macros in favor of`dtor\` crate.
- Migrated to using the `linktime-proc-macro` crate for proc-macro
support.

##### Fixed

- Fixed some stray `dtor` references in ctor docs.

###
[`v0.11.0`](https://redirect.github.com/mmastrac/rust-ctor/blob/HEAD/CHANGELOG.md#ctor-0110---2026-04-28)

#### ctor \[0.11.0] - 2026-04-28

###
[`v0.10.1`](https://redirect.github.com/mmastrac/rust-ctor/blob/HEAD/CHANGELOG.md#ctor-0101---2026-04-22)

#### ctor \[0.10.1] - 2026-04-22

</details>

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Author: epage

Cargo.lock

@@ -27,7 +27,7 @@ pre-release-replacements = [
 default = []
 
 [dependencies]
-ctor = { version = "0.8.0", default-features = false, features = [] }
+ctor = { version = "0.12.0", default-features = false, features = [] }
 
 [dev-dependencies]