build(deps): bump secp256k1 from 0.17.2 to 0.19.0

Bumps [secp256k1](https://github.com/rust-bitcoin/rust-secp256k1) from 0.17.2 to 0.19.0.
- [Release notes](https://github.com/rust-bitcoin/rust-secp256k1/releases)
- [Changelog](https://github.com/rust-bitcoin/rust-secp256k1/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-bitcoin/rust-secp256k1/compare/secp256k1-0.17.2...secp256k1-0.19.0)

Signed-off-by: dependabot[bot] <support@github.com>

Cargo.lock

@@ -2132,9 +2132,9 @@ checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 
 [[package]]
 name = "secp256k1"
-version = "0.17.2"
+version = "0.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2932dc07acd2066ff2e3921a4419606b220ba6cd03a9935123856cc534877056"
+checksum = "c6179428c22c73ac0fbb7b5579a56353ce78ba29759b3b8575183336ea74cdfb"
 dependencies = [
  "secp256k1-sys",
  "serde",
@@ -2142,9 +2142,9 @@ dependencies = [
 
 [[package]]
 name = "secp256k1-sys"
-version = "0.1.2"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7ab2c26f0d3552a0f12e639ae8a64afc2e3db9c52fe32f5fc6c289d38519f220"
+checksum = "11553d210db090930f4432bea123b31f70bbf693ace14504ea2a35e796c28dd2"
 dependencies = [
  "cc",
 ]

zebra-chain/Cargo.toml

@@ -22,7 +22,7 @@ lazy_static = "1.4.0"
 primitive-types = "0.7.2"
 rand_core = "0.5.1"
 ripemd160 = "0.8.0"
-secp256k1 = { version = "0.17.2", features = ["serde"] }
+secp256k1 = { version = "0.19.0", features = ["serde"] }
 serde = { version = "1", features = ["serde_derive", "rc"] }
 serde-big-array = "0.3.0"
 sha2 = { version = "0.9.1", features=["compress"] }