Bump org.testcontainers:testcontainers from 1.20.6 to 1.21.0

Bumps [org.testcontainers:testcontainers](https://github.com/testcontainers/testcontainers-java) from 1.20.6 to 1.21.0.
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.20.6...1.21.0)

---
updated-dependencies:
- dependency-name: org.testcontainers:testcontainers
  dependency-version: 1.21.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

build.gradle

@@ -97,7 +97,7 @@ dependencies {
     implementation 'org.xerial:sqlite-jdbc:3.49.1.0'
     implementation 'com.google.guava:guava:33.4.6-jre'
     implementation 'com.typesafe:config:1.4.3'
-    implementation 'org.testcontainers:testcontainers:1.20.6'
+    implementation 'org.testcontainers:testcontainers:1.21.0'
     implementation 'org.projectlombok:lombok:1.18.38'
     annotationProcessor 'org.projectlombok:lombok:1.18.38'
     implementation 'com.browserstack:browserstack-java-sdk:1.30.9'