chore(deps): update secp256k1 requirement from 0.24 to 0.25 (#27)

Updates the requirements on [secp256k1](https://github.com/rust-bitcoin/rust-secp256k1) to permit the latest version.
- [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/commits/secp256k1-0.25.0)

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

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cli/Cargo.toml

@@ -28,7 +28,7 @@ clap = "4.0.4"
 anyhow = "1.0"
 cidr = "0.2.1"
 maplit = "1.0.2"
-secp256k1 = { version = "0.24", features = [
+secp256k1 = { version = "0.25", features = [
   "global-context",
   "rand-std",
   "recovery",