Bump testcontainers from 1.19.8 to 1.20.1

Bumps `testcontainers` from 1.19.8 to 1.20.1.

Updates `org.testcontainers:junit-jupiter` from 1.19.8 to 1.20.1
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.19.8...1.20.1)

Updates `org.testcontainers:kafka` from 1.19.8 to 1.20.1
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.19.8...1.20.1)

Updates `org.testcontainers:postgresql` from 1.19.8 to 1.20.1
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.19.8...1.20.1)

Updates `org.testcontainers:mongodb` from 1.19.8 to 1.20.1
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.19.8...1.20.1)

Updates `org.testcontainers:testcontainers` from 1.19.8 to 1.20.1
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.19.8...1.20.1)

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

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -78,7 +78,7 @@ slf4j = "1.7.36"
 spectator-atlas = "1.7.14"
 spring = "5.3.36"
 spring-javaformat = "0.0.42"
-testcontainers = "1.19.8"
+testcontainers = "1.20.1"
 tomcat = "8.5.100"
 wavefront = "3.4.3"
 wiremock = "2.35.2"