build(deps): Bump mlua from 0.11.6 to 0.12.2

[dependabot]

Bumps mlua from 0.11.6 to 0.12.2.

Release notes

Sourced from mlua's releases.

v0.12.2

What's Changed

• Luau updated to 0.740
• Added Value::weak_lua helper (#714)
• Added recursion_limit to SerializeOptions and DeserializeOptions (defaults to 128)
• Reject fractional numbers when converting to Rust integers on Lua 5.3+ and Luau
• Fix precision loss when comparing integer and floating point Values
• Table::equals now follows the backend's native __eq semantics
• Fix raw identifiers and callback types in derive macros
• Prevent scoped userdata and callbacks from outliving their scope during cleanup
• Fix panic and error handling in callbacks and userdata destructors to avoid corrupting Lua state
• Return errors on reference stack exhaustion and improve stack checks
• Fix async thread cancellation, stack cleanup, and global hook restoration when recycling threads
• Fix Luau require from chunks loaded by path (#735) and require context lifetimes
• perf: Reduce callback overhead
• perf: Improve serde performance

Full Changelog: mlua-rs/mlua@v0.12.1...v0.12.2

v0.12.1

What's Changed

• Lua 5.5 updated to 5.5.1
• Luau updated to 0.736
• Allow #[mlua::userdata_impl] to be used in a different module from #[derive(UserData)] (#726)
• Fix coroutine stack handling after yielding from hooks (#723)

Full Changelog: mlua-rs/mlua@v0.12.0...v0.12.1

v0.12.0

Highlights

More ergonomic UserData building blocks

• Declaratively implement UserData with #[derive(UserData)] and register methods/fields with the new #[mlua::userdata_impl] attribute macro.
• UserDataOwned<T> wrapper takes ownership of userdata and implements FromLua
• UserDataMethods::add_method_once/add_async_method_once
• __todebugstring metamethod for pretty-printing userdata when debugging
• MaybeSync trait for userdata under the send feature

Reorganized public API

Types are now grouped into focused modules: chunk, debug, error, function, table, string, state, thread, userdata and luau.

Thread lifecycle callbacks

Hook into coroutine create/resume/yield events across all Lua versions (when using mlua API).

Luau improvements

... (truncated)

Changelog

Sourced from mlua's changelog.

v0.12.2 (Oct 03, 2026)

• Luau updated to 0.740
• Added Value::weak_lua helper (#714)
• Added recursion_limit to SerializeOptions and DeserializeOptions (defaults to 128)
• Reject fractional numbers when converting to Rust integers on Lua 5.3+ and Luau
• Fix precision loss when comparing integer and floating point Values
• Table::equals now follows the backend's native __eq semantics
• Fix raw identifiers and callback types in derive macros
• Prevent scoped userdata and callbacks from outliving their scope during cleanup
• Fix panic and error handling in callbacks and userdata destructors to avoid corrupting Lua state
• Return errors on reference stack exhaustion and improve stack checks
• Fix async thread cancellation, stack cleanup, and global hook restoration when recycling threads
• Fix Luau require from chunks loaded by path (#735) and require context lifetimes
• perf: Reduce callback overhead
• perf: Improve serde performance

v0.12.1 (Aug 29, 2026)

• Lua 5.5 updated to 5.5.1
• Luau updated to 0.736
• Allow #[mlua::userdata_impl] to be used in a different module from #[derive(UserData)] (#726)
• Fix coroutine stack handling after yielding from hooks (#723)

v0.12.0 (Jul 05, 2026)

Changes since v0.12.0-rc.2

• Create root re-exports are refactored (only essentials are re-exported, the rest is in the new submodules)
• Added ThreadStatus::Normal and Thread::is_normal (mimic coroutine.status)
• Added Lua::set_jit_options with support of Luau JIT inliner (Luau)
• Added Value::as_vector/Value::is_vector (Luau)
• Added Table::remove
• serde: tables with the array metatable are always encoded as arrays (incl. detect_mixed_tables option)
• impl Hash for BorrowedStr/BorrowedBytes
• Lua::current_thread resolves implicit async threads to their root owner (#706)
• Bugfixes and improvements

v0.12.0-rc.2 (Jun 06, 2026)

• Add #[derive(UserData)] and #[mlua::userdata_impl] macros
• Support thread create/resume/yield callbacks for all Lua versions (including Luau)
• Support to_alias_override/to_alias_fallback in Require trait (Luau)
• Prevent XRc overflow when dropping RawLua with foreign Lua state
• implement Not for StdLib (#699)
• Fix String::to_pointer return NULL in Lua <5.4

v0.12.0-rc.1 (Apr 21, 2026)

• Rust 2024 edition

... (truncated)

Commits

• a186d46 v0.12.2
• 39d5863 Update CHANGELOG
• ee6fa80 Add Value::weak_lua helper
• 30b04f1 Update CHANGELOG
• a1781d5 Reduce callback overhead
• 68d9184 Optimize integer conversion from Luau numbers and strings
• e5230e3 Separate userdata type cache hits from map lookup
• 134af85 Reuse the table lock for metatable checks
• 6579794 Batch vector and array conversion from Lua tables
• 6a74d39 mlua_derive: allow lifetime parameters in userdata methods
• Additional commits viewable in compare view

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