Update doctest to use hex-conservative to avoid rust-bitcoin churn

Author: philipr-za

Cargo.toml

@@ -10,7 +10,7 @@ thiserror = "1.0.30"
 zeroize = "1"
 
 [dev-dependencies]
-bitcoin_hashes = "0.10.0"
+hex-conservative = "0.2.1"
 
 [build-dependencies]
 cc = "^1.0"

src/lib.rs

@@ -10,8 +10,8 @@
 //! # Examples
 //!
 //! ```
-//! extern crate bitcoin_hashes;
-//! use bitcoin_hashes::hex::FromHex;
+//! extern crate hex_conservative;
+//! use hex_conservative::FromHex;
 //! use ctaes::{Padding, Pkcs7, AesCbcBlockCipher, Aes128Cbc};
 //!
 //! let key = <[u8; 16]>::from_hex("2b7e151628aed2a6abf7158809cf4f3c").unwrap();

tests/tests.rs

@@ -4,11 +4,10 @@
 * file COPYING or https://opensource.org/licenses/mit-license.php.   *
 **********************************************************************/
 
-extern crate bitcoin_hashes;
+extern crate hex_conservative;
 extern crate ctaes;
 
-
-use bitcoin_hashes::hex::FromHex;
+use hex_conservative::FromHex;
 use ctaes::{Aes128, Aes128Cbc, Aes192, Aes256, AesBlockCipher, AesCbcBlockCipher};
 use ctaes::Aes256Cbc;
 use ctaes::Aes192Cbc;