chore(deps): update rust crate git2 to 0.18.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
git2	build-dependencies	minor	0.16.1 -> 0.18.0

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Release Notes

rust-lang/git2-rs (git2)

v0.18.0

Compare Source

0.17.2...0.18.0

Added

• Added Blame::blame_buffer for getting blame data for a file that has been modified in memory.
  #​981

Changed

• Updated to libgit2 1.7.0.
  #​968
• Updated to libgit2 1.7.1.
  #​982
• Switched from bitflags 1.x to 2.1. This brings some small changes to types generated by bitflags.
  #​973
• Changed Revwalk::with_hide_callback to take a mutable reference to its callback to enforce type safety.
  #​970
• Implemented FusedIterator for many iterators that can support it.
  #​955

Fixed

• Fixed builds with cargo's -Zminimal-versions.
  #​960

v0.17.2

Compare Source

0.17.1...0.17.2

Added

• Added support for stashing with options (which can support partial stashing).
  #​930

v0.17.1

Compare Source

0.17.0...0.17.1

Changed

• Updated to libgit2 1.6.4.
  #​948

v0.17.0

Compare Source

0.16.1...0.17.0

Added

• Added IntoIterator implementation for Statuses.
  #​880
• Added Reference::symbolic_set_target
  #​893
• Added Copy, Clone, Debug, PartialEq, and Eq implementations for AutotagOption and FetchPrune.
  #​889
• Added Eq and PartialEq implementations for Signature.
  #​890
• Added Repository::discover_path.
  #​883
• Added Submodule::repo_init.
  #​914
• Added Tag::is_valid_name.
  #​882
• Added Repository::set_head_bytes.
  #​931
• Added the Indexer type which is a low-level API for storing and indexing pack files.
  #​911
• Added Index::find_prefix.
  #​903
• Added support for the deprecated group-writeable blob mode. This adds a new variant to FileMode.
  #​887
• Added PushCallbacks::push_negotiation callback and the corresponding PushUpdate type for getting receiving information about the updates to perform.
  #​926

Changed

• Updated to libgit2 1.6.3.
  This brings in many changes, including better SSH host key support on Windows and better SSH host key algorithm negotiation.
  1.6.3 is now the minimum supported version.
  #​935
• Updated libssh2-sys from 0.2 to 0.3.
  This brings in numerous changes, including SHA2 algorithm support with RSA.
  #​919
• Changed RemoteCallbacks::credentials callback error handler to correctly set the libgit2 error class.
  #​918
• DiffOptions::flag now takes a git_diff_option_t type.
  #​935

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