bip32: bump secp256k1 dependency to v0.29 (#1227)

Author: tony-iqlusion

bip32/Cargo.lock

@@ -29,7 +29,7 @@ zeroize = { version = "1", default-features = false }
 k256 = { version = "=0.14.0-pre.2", optional = true, default-features = false, features = ["ecdsa", "sha256"] }
 once_cell = { version = "1", optional = true }
 pbkdf2 = { version = "=0.13.0-pre.1", optional = true, default-features = false, features = ["hmac"] }
-secp256k1-ffi = { package = "secp256k1", version = "0.27", optional = true }
+secp256k1-ffi = { package = "secp256k1", version = "0.29", optional = true }
 
 [dev-dependencies]
 hex-literal = "0.4"