build(deps): update magnus requirement from 0.7.1 to 0.8.2 in /ext/app_bridge

[dependabot]

Updates the requirements on magnus to permit the latest version.

Release notes

Sourced from magnus's releases.

0.8.2

Magnus 0.8.2 is a patch release, with 1 bug fix.

Fixes an incorrect error message when converting a Ruby string to a Rust string fails. Thanks to @​jeffcharles for this fix.

See the 0.8.0 release for what's new in 0.8.

Changelog

Sourced from magnus's changelog.

[0.8.2] - 2025-10-07

Fixed

• Fixed error message when converting Ruby string to a Rust string.

[0.8.1] - 2025-09-06

Fixed

• Fixed error compiling on 32-bit platforms.

[0.8.0] - 2025-08-25

Added

• Ruby::time_nano_new, Ruby::time_timespec_new, and Time::timespec.
• The chrono feature can be enabled to allow automatic conversions between chrono::DateTime<Utc> and chrono::DateTime<FixedOffset> and Ruby Time objects.
• typed_data::Writebarrier::writebarrier and writebarrier_unprotect.
• Implement TryConvert for NonZero types.
• io module available with io feature, supporting io_extract_modeenc, OpenFlags, FMode, and IoEncoding.
• Ruby::io_extract_modeenc, a safe wrapper around rb_io_extract_modeenc, allowing structured extraction of open flags, mode flags, and IO encoding metadata.
• OpenFlags struct, which wraps Ruby's O_ open flags (e.g. O_RDONLY, O_CREAT) in a convenient bitflag-like interface.
• FMode struct, representing FMODE_ flags used internally by Ruby to represent IO modes (READ, WRITE, BINARY_MODE, etc.).
• IoEncoding, a safe Rust struct for temporarily owning and inspecting rb_io_encoding, including safe accessors for internal/external encoding and encoding options.
• Automatic type conversions to/from i128/u128.
• to_i128/to_u128 for Fixnum/Bignum/Integer.
• Ruby::integer_from_i128 & Ruby::integer_from_u128.
• RHash::to_btree_map and automatic conversion from Hash to BTreeMap.

Changed

• Minimum supported Rust version is now 1.65.
• Conversions between Ruby's Time and Rust's SystemTime now preserve nanosecond precision.
• 'old-api' feature, which disables deprecation warnings for the old api is no longer a default feature.
• RString::to_string will now use a Ruby utf-8 validation api that caches the results of the validity check. This will greatly improve performance in the case a string is already known to be utf-8, but may slightly reduce performance when not known.
• RString::to_interned_str now returns an RString rather than an FString.

Deprecated

• thread_fd_close as it will be a no-op as of Ruby 3.5

Removed

• FString as it can not safely uphold the promise it was making. Either due

... (truncated)

Commits

• bca4ea7 bump version to 0.8.2
• feeb66b Fix error message when there's an invalid byte sequence
• 6bbb0e2 bump version to 0.8.1
• 020eb2d fix for 32bit platforms
• 8fd9288 update changelog for 0.8.0 release
• 108c87e Merge pull request #154 from sandbergja/singleton-typo
• 5347568 Fix typo: singlton should be singleton
• 56bb429 update examples in magnus-macros
• 16c1cc9 better fix for change in rb_fiber_raise
• 00db8b1 fix doc
• Additional commits viewable in compare view

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