Bump gix-hash from 0.19.0 to 0.20.1

Bumps [gix-hash](https://github.com/GitoxideLabs/gitoxide) from 0.19.0 to 0.20.1.
- [Release notes](https://github.com/GitoxideLabs/gitoxide/releases)
- [Changelog](https://github.com/GitoxideLabs/gitoxide/blob/main/CHANGELOG.md)
- [Commits](GitoxideLabs/gitoxide@gix-hash-v0.19.0...gix-hash-v0.20.1)

---
updated-dependencies:
- dependency-name: gix-hash
  dependency-version: 0.20.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Cargo.lock

@@ -27,7 +27,7 @@ env_logger = "0.11.5"
 log = "0.4.28"
 futures = "0.3.31"
 gix = { version = "0.73.0", default-features = false }
-gix-hash = "0.19.0"
+gix-hash = "0.20.1"
 hyper-reverse-proxy = { path = "hyper-reverse-proxy", version = "0.0.1" }
 lazy_static = "1.5.0"
 libc = "0.2.177"