build(deps): bump gix from 0.88.0 to 0.89.0 in /engine

[dependabot]

Bumps gix from 0.88.0 to 0.89.0.

Release notes

Sourced from gix's releases.

gix v0.89.0

Reverted (BREAKING)

• replace fs with gix-fs

  gix-fs already provides the filesystem helpers and recursive walkers. Keeping their duplicate implementation in gix-features adds unnecessary filesystem dependencies to the foundational feature crate.

  Remove the fs module and the walkdir and fs-read-dir features. Migrate workspace callers to gix_fs, move traversal requests to gix-fs/walkdir, and update the manifests, lockfile, traversal documentation, and feature check script together.

Changed (BREAKING)

• use gix::Result throughout the public API

  The error migration left public gix methods, iterators, callbacks, and configuration validators returning a mixture of exceptions, I/O errors, custom error enums, and even the rejected input itself. Callers still had to adapt these separately despite the common gix::Error boundary.

  Use the crate-level Result throughout APIs defined by gix, including fallible configuration inputs and owned TryFrom implementations. Keep underlying causes, classifications, and diagnostic metadata available through gix::Error. Configuration adapters accept arbitrary caller errors without panicking or losing their causes. Object kind conversions report validation errors. Re-exported plumbing APIs and error types required by external traits retain their existing contracts.

  Adapt gitoxide-core and gix-tix callers in the same breaking change, removing explicit conversions that became identities.

New Features

• remove linked worktrees safely

  Expose safe linked-worktree removal through gix, using the gix-worktree removal plumbing. Validate the selected worktree, inspect dirty and locked states, and preserve the checkout unless the requested removal policy permits deleting it.

  Enable removal through worktree-mutation and report progress and cleanup outcomes to callers. Keep branch deletion explicit, adding compare-and-swap branch removal for callers that have already inspected a target so concurrent branch changes are not lost. Cover porcelain removal behavior and conditional branch deletion in disposable repositories.

• add and check out linked worktrees

... (truncated)

Commits

• 0115e90 Release gix-error v0.5.0, gix-date v0.18.0, gix-actor v0.44.0, gix-trace v0.3...
• 794eeef prepare changelogs prior to release
• fd88555 Merge pull request #3043 from cruessler/run-gix-transport-tests-with-sha-256
• c2f1925 Merge pull request #3042 from cruessler/branch-9
• d78005a Merge pull request #3038 from cruessler/run-gix-discover-tests
• 248186c review
• 951b9fc Make first gix-transport test GIX_TEST_FIXTURE_HASH-aware
• b9093f8 review
• e6fb2ad change(gix-status)!: Remove unnecessary object_hash from Options
• 9572ce0 Add test for detached HEAD discovery
• Additional commits viewable in compare view

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