Update abstract-testing requirement from 0.15.1 to 0.18.0

Updates the requirements on [abstract-testing](https://github.com/AbstractSDK/contracts) to permit the latest version.
- [Release notes](https://github.com/AbstractSDK/contracts/releases)
- [Changelog](https://github.com/AbstractSDK/contracts/blob/main/CHANGELOG.md)
- [Commits](https://github.com/AbstractSDK/contracts/commits)

---
updated-dependencies:
- dependency-name: abstract-testing
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Cargo.toml

@@ -59,7 +59,7 @@ cw20 = "1.0.1"
 [dev-dependencies]
 cavern-protocol-abstract-module = { path = ".", features = ["interface"] }
 abstract-interface = { version = "0.15.1", features = ["daemon"] }
-abstract-testing = { version = "0.15.1" }
+abstract-testing = { version = "0.18.0" }
 abstract-sdk = { version = "0.15.1", features = ["test-utils"] }
 speculoos = "0.11.0"
 semver = "1.0"