add bitcoin-internals dependency

I would like the ArrayExt trait, which has a bunch of unsafe code, and
which implements stuff that is missing in stdlib. This is already in
our dep tree through rust-bitcoin so adding a direct dependency adds
no new code exposure.

Author: apoelstra

Cargo-recent.lock

@@ -26,7 +26,7 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2c8d66485a3a2ea485c1913c4572ce0256067a5377ac8c75c4960e1cda98605f"
 dependencies = [
- "bitcoin-internals",
+ "bitcoin-internals 0.3.0",
  "bitcoin_hashes",
 ]
 
@@ -66,7 +66,7 @@ dependencies = [
  "base58ck",
  "base64 0.21.7",
  "bech32",
- "bitcoin-internals",
+ "bitcoin-internals 0.3.0",
  "bitcoin-io",
  "bitcoin-units",
  "bitcoin_hashes",
@@ -85,6 +85,12 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "bitcoin-internals"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a30a22d1f112dde8e16be7b45c63645dc165cef254f835b3e1e9553e485cfa64"
+
 [[package]]
 name = "bitcoin-io"
 version = "0.1.3"
@@ -103,7 +109,7 @@ version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5285c8bcaa25876d07f37e3d30c303f2609179716e11d688f51e8f1fe70063e2"
 dependencies = [
- "bitcoin-internals",
+ "bitcoin-internals 0.3.0",
  "serde",
 ]
 
@@ -203,6 +209,7 @@ dependencies = [
  "bech32",
  "bincode",
  "bitcoin",
+ "bitcoin-internals 0.5.0",
  "getrandom 0.2.16",
  "hex-conservative 1.1.0",
  "rand",

Cargo.toml

@@ -29,6 +29,7 @@ base64 = ["bitcoin/base64"]
 [dependencies]
 bech32 = "0.11.0"
 bitcoin = "0.32.2"
+internals = { package = "bitcoin-internals", version = "0.5" }
 secp256k1-zkp = { version = "0.11.0", features = ["global-context", "hashes"] }
 
 # Used for ContractHash::from_json_contract.