Update hashbrown requirement from 0.13.2 to 0.14.1 (#204)

Updates the requirements on [hashbrown](https://github.com/rust-lang/hashbrown) to permit the latest version.
- [Changelog](https://github.com/rust-lang/hashbrown/blob/master/CHANGELOG.md)
- [Commits](rust-lang/hashbrown@v0.13.2...v0.14.1)

---
updated-dependencies:
- dependency-name: hashbrown
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

test-support/reference-trie/Cargo.toml

@@ -13,7 +13,7 @@ keccak-hasher = { path = "../keccak-hasher", version = "0.16.0" }
 trie-db = { path = "../../trie-db", default-features = false, version = "0.28.0" }
 trie-root = { path = "../../trie-root", default-features = false, version = "0.18.0" }
 parity-scale-codec = { version = "3.0.0", features = ["derive"] }
-hashbrown = { version = "0.13.2", default-features = false, features = ["ahash"] }
+hashbrown = { version = "0.14.1", default-features = false, features = ["ahash"] }
 paste = "1.0.12"
 
 [dev-dependencies]