chore(deps): Update Rust crate git2 to >=0.18, <=0.20

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
git2	dependencies	minor	>=0.18, <=0.19 -> >=0.18, <=0.20

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Release Notes

rust-lang/git2-rs (git2)

v0.20.0

Compare Source

0.19.0...0.20.0

Added

• Debug is now implemented for transport::Service
  #​1074
• Added Repository::commondir
  #​1079
• Added Repository::merge_base_octopus
  #​1088
• Restored impls for PartialOrd, Ord, and Hash for bitflags types that were inadvertently removed in a prior release.
  #​1096
• Added CheckoutBuilder::disable_pathspec_match
  #​1107
• Added PackBuilder::write
  #​1110

Changed

• ❗ Updated to libgit2 1.9.0
  #​1111
• ❗ Removed the ssh_key_from_memory Cargo feature, it was unused.
  #​1087
• ❗ Errors from Tree::walk are now correctly reported to the caller.
  #​1098
• ❗ The trace_set callback now takes a &[u8] instead of a &str.
  #​1071
• ❗ Error::last_error now returns Error instead of Option<Error>.
  #​1072

Fixed

• Fixed OdbReader::read return value.
  #​1061
• When a credential helper executes a shell command, don't pop open a console window on Windows.
  #​1075

v0.19.0

Compare Source

0.18.3...0.19.0

Added

• Added opts functions to control server timeouts (get_server_connect_timeout_in_milliseconds, set_server_connect_timeout_in_milliseconds, get_server_timeout_in_milliseconds, set_server_timeout_in_milliseconds), and add ErrorCode::Timeout.
  #​1052

Changed

• ❗ Updated to libgit2 1.8.1
  #​1032
• Reduced size of the Error struct.
  #​1053

Fixed

• Fixed some callbacks to relay the error from the callback to libgit2.
  #​1043

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[renovate]

⚠️ 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
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: Cargo.lock

Command failed: cargo update --config net.git-fetch-with-cli=true --manifest-path Cargo.toml --package [email protected] --precise 0.20.0
    Updating crates.io index
error: failed to select a version for the requirement `git2 = ">=0.16, <=0.18"`
candidate versions found which didn't match: 0.20.0
location searched: crates.io index
required by package `git-fixture v0.3.4`
    ... which satisfies dependency `git-fixture = "^0.3.4"` (locked to 0.3.4) of package `git-dive v0.1.6 (/tmp/renovate/repos/github/gitext-rs/git-dive)`

[coveralls]

Pull Request Test Coverage Report for Build 13600245401

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 0.0%

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Totals
Change from base Build 13573288245:	0.0%
Covered Lines:	0
Relevant Lines:	705

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💛 - Coveralls