Bump secp256k1-zkp from 0.6.0 to 0.7.0

Bumps [secp256k1-zkp](https://github.com/ElementsProject/rust-secp256k1-zkp) from 0.6.0 to 0.7.0.
- [Release notes](https://github.com/ElementsProject/rust-secp256k1-zkp/releases)
- [Changelog](https://github.com/ElementsProject/rust-secp256k1-zkp/blob/master/CHANGELOG.md)
- [Commits](https://github.com/ElementsProject/rust-secp256k1-zkp/commits)

---
updated-dependencies:
- dependency-name: secp256k1-zkp
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Cargo.lock

@@ -9,7 +9,7 @@ edition = "2021"
 anyhow = "1"
 bdk = { version = "0.23.0", default-features = false }
 bit-vec = "0.6"
-secp256k1-zkp = { version = "0.6", features = ["bitcoin_hashes", "global-context", "serde"] }
+secp256k1-zkp = { version = "0.7", features = ["bitcoin_hashes", "global-context", "serde"] }
 thiserror = "1"
 
 [dev-dependencies]

maia-core/Cargo.toml

@@ -9,7 +9,7 @@ bdk = { version = "0.23.0", default-features = false }
 itertools = "0.10"
 maia-core = { path = "../maia-core" }
 rand = "0.6"
-secp256k1-zkp = { version = "0.6", features = ["bitcoin_hashes", "global-context", "serde"] }
+secp256k1-zkp = { version = "0.7", features = ["bitcoin_hashes", "global-context", "serde"] }
 thiserror = "1"
 
 [dev-dependencies]