Bump git2 from 0.18.3 to 0.19.0

Bumps [git2](https://github.com/rust-lang/git2-rs) from 0.18.3 to 0.19.0.
- [Changelog](https://github.com/rust-lang/git2-rs/blob/master/CHANGELOG.md)
- [Commits](rust-lang/git2-rs@git2-0.18.3...git2-0.19.0)

---
updated-dependencies:
- dependency-name: git2
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Cargo.lock

@@ -6,7 +6,7 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-git2 = "0.18.3"
+git2 = "0.19.0"
 clap = "2.33.3"
 colored = "2.1.0"
 between = "0.1.0"