Upgrade hashes dependency

Keep the range versioning but increase the threshould to include the
upcoming `v0.14.0` release.

Author: tcharding

CHANGELOG.md

@@ -1,3 +1,7 @@
+# Unreleased
+
+* Upgrade `hashes` using range dependency `version = ">= 0.12, <= 0.14"`.
+
 # 0.28.2 - 2024-01-30
 
 * Implement `Hash` for `Scalar` [#674](https://github.com/rust-bitcoin/rust-secp256k1/pull/674)

Cargo.toml

@@ -40,7 +40,7 @@ serde = { version = "1.0.103", default-features = false, optional = true }
 
 # You likely only want to enable these if you explicitly do not want to use "std", otherwise enable
 # the respective -std feature e.g., hashes-std
-hashes = { package = "bitcoin_hashes", version = ">= 0.12, <= 0.13", default-features = false, optional = true }
+hashes = { package = "bitcoin_hashes", version = ">= 0.12, <= 0.14", default-features = false, optional = true }
 rand = { version = "0.8", default-features = false, optional = true }
 
 [dev-dependencies]