Change hashes dep spec to >=0.12,<0.14

Cargo.toml

@@ -54,7 +54,7 @@ unicode-normalization = { version = "=0.1.22", optional = true }
 [dev-dependencies]
 # Enabling the "rand" feature by default to run the benches
 bip39 = { path = ".", features = ["rand"] }
-bitcoin_hashes = ">=0.12,<=0.13" # enable default features for test
+bitcoin_hashes = ">=0.12,<0.14" # enable default features for test
 
 
 [package.metadata.docs.rs]