chore(deps): Bump org-testcontainers from 1.20.2 to 1.20.3

Bumps `org-testcontainers` from 1.20.2 to 1.20.3.

Updates `org.testcontainers:testcontainers` from 1.20.2 to 1.20.3
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.20.2...1.20.3)

Updates `org.testcontainers:junit-jupiter` from 1.20.2 to 1.20.3
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.20.2...1.20.3)

Updates `org.testcontainers:localstack` from 1.20.2 to 1.20.3
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.20.2...1.20.3)

---
updated-dependencies:
- dependency-name: org.testcontainers:testcontainers
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.testcontainers:junit-jupiter
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.testcontainers:localstack
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

gradle/libs.versions.toml

@@ -15,7 +15,7 @@ org-jetbrains-kotlin = "2.0.21"
 org-junit-jupiter = "5.11.3"
 org-mockito = "5.14.1"
 org-slf4j = "2.0.16"
-org-testcontainers = "1.20.2"
+org-testcontainers = "1.20.3"
 owasp-dependencycheck = "10.0.4"
 protobuf = "4.28.2"
 protobuf-plugin =  "0.9.4"