build(deps): bump org.testcontainers:testcontainers

Bumps [org.testcontainers:testcontainers](https://github.com/testcontainers/testcontainers-java) from 1.17.6 to 1.18.1.
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.17.6...1.18.1)

---
updated-dependencies:
- dependency-name: org.testcontainers:testcontainers
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

gradle/libs.versions.toml

@@ -6,7 +6,7 @@ slf4j = "2.0.7"
 guava = "31.1-jre"
 assertj = "3.24.2"
 junit = "5.9.2"
-testcontainers = "1.17.6"
+testcontainers = "1.18.1"
 protoc = "3.21.10"
 failsafe = "2.4.4"
 awaitility = "4.2.0"