build(deps): bump git2 from 0.20.0 to 0.20.2

Bumps [git2](https://github.com/rust-lang/git2-rs) from 0.20.0 to 0.20.2.
- [Changelog](https://github.com/rust-lang/git2-rs/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/git2-rs/compare/git2-0.20.0...git2-0.20.2)

---
updated-dependencies:
- dependency-name: git2
  dependency-version: 0.20.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Cargo.lock

@@ -667,9 +667,9 @@ dependencies = [
 
 [[package]]
 name = "git2"
-version = "0.20.0"
+version = "0.20.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3fda788993cc341f69012feba8bf45c0ba4f3291fcc08e214b4d5a7332d88aff"
+checksum = "2deb07a133b1520dc1a5690e9bd08950108873d7ed5de38dcc74d3b5ebffa110"
 dependencies = [
  "bitflags",
  "libc",
@@ -932,9 +932,9 @@ checksum = "6a82ae493e598baaea5209805c49bbf2ea7de956d50d7da0da1164f9c6d28543"
 
 [[package]]
 name = "libgit2-sys"
-version = "0.18.0+1.9.0"
+version = "0.18.2+1.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e1a117465e7e1597e8febea8bb0c410f1c7fb93b1e1cddf34363f8390367ffec"
+checksum = "1c42fe03df2bd3c53a3a9c7317ad91d80c81cd1fb0caec8d7cc4cd2bfa10c222"
 dependencies = [
  "cc",
  "libc",