build(deps): bump testcontainers from 1.19.7 to 1.20.0

Bumps `testcontainers` from 1.19.7 to 1.20.0.

Updates `org.testcontainers:junit-jupiter` from 1.19.7 to 1.20.0
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.19.7...1.20.0)

Updates `org.testcontainers:kafka` from 1.19.7 to 1.20.0
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.19.7...1.20.0)

Updates `org.testcontainers:postgresql` from 1.19.7 to 1.20.0
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.19.7...1.20.0)

Updates `org.testcontainers:vault` from 1.19.7 to 1.20.0
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.19.7...1.20.0)

---
updated-dependencies:
- dependency-name: org.testcontainers:junit-jupiter
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.testcontainers:kafka
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.testcontainers:postgresql
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.testcontainers:vault
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

gradle/libs.versions.toml

@@ -34,7 +34,7 @@ rsApi = "4.0.0"
 swagger-annotations-jakarta = "2.2.21"
 titanium = "1.4.0"
 kafkaClients = "3.7.0"
-testcontainers = "1.19.7"
+testcontainers = "1.20.0"
 tink = "1.13.0"