build(deps): bump git2 from 0.20.2 to 0.20.3

Bumps [git2](https://github.com/rust-lang/git2-rs) from 0.20.2 to 0.20.3.
- [Changelog](https://github.com/rust-lang/git2-rs/blob/git2-0.20.3/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/git2-rs/compare/git2-0.20.2...git2-0.20.3)

---
updated-dependencies:
- dependency-name: git2
  dependency-version: 0.20.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Cargo.lock

@@ -658,9 +658,9 @@ dependencies = [
 
 [[package]]
 name = "git2"
-version = "0.20.2"
+version = "0.20.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2deb07a133b1520dc1a5690e9bd08950108873d7ed5de38dcc74d3b5ebffa110"
+checksum = "3e2b37e2f62729cdada11f0e6b3b6fe383c69c29fc619e391223e12856af308c"
 dependencies = [
  "bitflags",
  "libc",
@@ -915,9 +915,9 @@ checksum = "6a82ae493e598baaea5209805c49bbf2ea7de956d50d7da0da1164f9c6d28543"
 
 [[package]]
 name = "libgit2-sys"
-version = "0.18.2+1.9.1"
+version = "0.18.3+1.9.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1c42fe03df2bd3c53a3a9c7317ad91d80c81cd1fb0caec8d7cc4cd2bfa10c222"
+checksum = "c9b3acc4b91781bb0b3386669d325163746af5f6e4f73e6d2d630e09a35f3487"
 dependencies = [
  "cc",
  "libc",