Upgrade gix crates

Summary:
ignore-conflict-markers

Upgrade gitoxide crates to latest release to propagate some upstream fixes:
* [[gix-object] Support empty tags with or without trailing NL](GitoxideLabs/gitoxide#1903)
* [[fix] Make Tree roundtrip by storing additional bit of information](GitoxideLabs/gitoxide#1917)
* [fix: Make email with spaces round-trip](GitoxideLabs/gitoxide#1922)
* [Make author and committer date roundtrip](GitoxideLabs/gitoxide#1935)

Reviewed By: quark-zju

Differential Revision: D74337531

fbshipit-source-id: 5361c7d4b0b52c683e05af8d19ac2169aebc8197

Author: Pierre Chevalier

hphp/hack/src/Cargo.lock

@@ -11,7 +11,7 @@ license = "MIT"
 path = "../../hh_slog.rs"
 
 [dependencies]
-chrono = { version = "0.4", features = ["clock", "serde", "std"], default-features = false }
+chrono = { version = "=0.4.39", features = ["clock", "serde", "std"], default-features = false }
 locked_file_drain = { version = "0.0.0", path = "../locked_file_drain" }
 slog = { version = "2.7", features = ["max_level_trace", "nested-values"] }
 slog-async = { version = "2.3", features = ["nested-values"] }