chore(deps): update rust crate git2 to 0.18.0 - autoclosed

This PR contains the following updates:

Package	Type	Update	Change
git2	dependencies	minor	`0.17.0` -> `0.18.0`

Release Notes

rust-lang/git2-rs (git2)

### [`v0.18.0`](https://togithub.com/rust-lang/git2-rs/blob/HEAD/CHANGELOG.md#0180---2023-08-28) [Compare Source](https://togithub.com/rust-lang/git2-rs/compare/0.17.2...git2-0.18.0) [0.17.2...0.18.0](https://togithub.com/rust-lang/git2-rs/compare/0.17.2...git2-0.18.0) ##### Added - Added `Blame::blame_buffer` for getting blame data for a file that has been modified in memory. [#981](https://togithub.com/rust-lang/git2-rs/pull/981) ##### Changed - Updated to libgit2 [1.7.0](https://togithub.com/libgit2/libgit2/releases/tag/v1.7.0). [#968](https://togithub.com/rust-lang/git2-rs/pull/968) - Updated to libgit2 [1.7.1](https://togithub.com/libgit2/libgit2/releases/tag/v1.7.1). [#982](https://togithub.com/rust-lang/git2-rs/pull/982) - Switched from bitflags 1.x to 2.1. This brings some small changes to types generated by bitflags. [#973](https://togithub.com/rust-lang/git2-rs/pull/973) - Changed `Revwalk::with_hide_callback` to take a mutable reference to its callback to enforce type safety. [#970](https://togithub.com/rust-lang/git2-rs/pull/970) - Implemented `FusedIterator` for many iterators that can support it. [#955](https://togithub.com/rust-lang/git2-rs/pull/955) ##### Fixed - Fixed builds with cargo's `-Zminimal-versions`. [#960](https://togithub.com/rust-lang/git2-rs/pull/960) ### [`v0.17.2`](https://togithub.com/rust-lang/git2-rs/blob/HEAD/CHANGELOG.md#0172---2023-05-27) [Compare Source](https://togithub.com/rust-lang/git2-rs/compare/0.17.1...0.17.2) [0.17.1...0.17.2](https://togithub.com/rust-lang/git2-rs/compare/0.17.1...0.17.2) ##### Added - Added support for stashing with options (which can support partial stashing). [#930](https://togithub.com/rust-lang/git2-rs/pull/930) ### [`v0.17.1`](https://togithub.com/rust-lang/git2-rs/blob/HEAD/CHANGELOG.md#0171---2023-04-13) [Compare Source](https://togithub.com/rust-lang/git2-rs/compare/0.17.0...0.17.1) [0.17.0...0.17.1](https://togithub.com/rust-lang/git2-rs/compare/0.17.0...0.17.1) ##### Changed - Updated to libgit2 [1.6.4](https://togithub.com/libgit2/libgit2/releases/tag/v1.6.4). [#948](https://togithub.com/rust-lang/git2-rs/pull/948)

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⚠ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

any of the package files in this branch needs updating, or
the branch becomes conflicted, or
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The artifact failure details are included below:

File name: Cargo.lock

Command failed: docker run --rm --name=renovate_a_sidecar --label=renovate_a_child --memory=3584m -v "/tmp/worker/d4b76c/753e91/repos/github/gitext-rs/git2-ext":"/tmp/worker/d4b76c/753e91/repos/github/gitext-rs/git2-ext" -v "/tmp/worker/d4b76c/753e91/cache":"/tmp/worker/d4b76c/753e91/cache" -e CONTAINERBASE_CACHE_DIR -w "/tmp/worker/d4b76c/753e91/repos/github/gitext-rs/git2-ext" ghcr.io/containerbase/sidecar:9.19.3 bash -l -c "install-tool rust 1.72.0 && cargo update --manifest-path Cargo.toml --workspace"
    Updating crates.io index
error: failed to select a version for `libgit2-sys`.
    ... required by package `git2 v0.17.1`
    ... which satisfies dependency `git2 = "^0.17.0"` of package `git-fixture v0.3.2`
    ... which satisfies dependency `git-fixture = "^0.3.2"` of package `git2-ext v0.6.0 (/tmp/worker/d4b76c/753e91/repos/github/gitext-rs/git2-ext)`
versions that meet the requirements `^0.15.1` are: 0.15.2+1.6.4, 0.15.1+1.6.4

the package `libgit2-sys` links to the native library `git2`, but it conflicts with a previous package which links to `git2` as well:
package `libgit2-sys v0.16.1+1.7.1`
    ... which satisfies dependency `libgit2-sys = "^0.16.0"` of package `git2 v0.18.0`
    ... which satisfies dependency `git2 = "^0.18.0"` of package `git2-ext v0.6.0 (/tmp/worker/d4b76c/753e91/repos/github/gitext-rs/git2-ext)`
Only one package in the dependency graph may specify the same links value. This helps ensure that only one copy of a native library is linked in the final binary. Try to adjust your dependencies so that only one package uses the links ='libgit2-sys' value. For more information, see https://doc.rust-lang.org/cargo/reference/resolver.html#links.

failed to select a version for `libgit2-sys` which could resolve this conflict

gitext-rs / git2-ext