build(deps): bump secp256k1 from 0.22.1 to 0.22.2

Bumps [secp256k1](https://github.com/rust-bitcoin/rust-secp256k1) from 0.22.1 to 0.22.2.
- [Release notes](https://github.com/rust-bitcoin/rust-secp256k1/releases)
- [Changelog](https://github.com/rust-bitcoin/rust-secp256k1/blob/secp256k1-0.22.2/CHANGELOG.md)
- [Commits](https://github.com/rust-bitcoin/rust-secp256k1/compare/secp256k1-0.22.1...secp256k1-0.22.2)

---
updated-dependencies:
- dependency-name: secp256k1
  dependency-type: direct:production
...

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

Cargo.lock

@@ -906,9 +906,9 @@ dependencies = [
 
 [[package]]
 name = "secp256k1"
-version = "0.22.1"
+version = "0.22.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "26947345339603ae8395f68e2f3d85a6b0a8ddfe6315818e80b8504415099db0"
+checksum = "295642060261c80709ac034f52fca8e5a9fa2c7d341ded5cdb164b7c33768b2a"
 dependencies = [
  "secp256k1-sys",
  "serde",