Bump git2 from 0.17.1 to 0.17.2

Bumps [git2](https://github.com/rust-lang/git2-rs) from 0.17.1 to 0.17.2.
- [Changelog](https://github.com/rust-lang/git2-rs/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/git2-rs/compare/0.17.1...0.17.2)

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

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

Cargo.lock

@@ -216,9 +216,9 @@ dependencies = [
 
 [[package]]
 name = "git2"
-version = "0.17.1"
+version = "0.17.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8b7905cdfe33d31a88bb2e8419ddd054451f5432d1da9eaf2ac7804ee1ea12d5"
+checksum = "7b989d6a7ca95a362cf2cfc5ad688b3a467be1f87e480b8dad07fee8c79b0044"
 dependencies = [
  "bitflags",
  "libc",
@@ -295,9 +295,9 @@ checksum = "99227334921fae1a979cf0bfdfcc6b3e5ce376ef57e16fb6fb3ea2ed6095f80c"
 
 [[package]]
 name = "libgit2-sys"
-version = "0.15.1+1.6.4"
+version = "0.15.2+1.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fb4577bde8cdfc7d6a2a4bcb7b049598597de33ffd337276e9c7db6cd4a2cee7"
+checksum = "a80df2e11fb4a61f4ba2ab42dbe7f74468da143f1a75c74e11dee7c813f694fa"
 dependencies = [
  "cc",
  "libc",