Bump transport from 6.5.4 to 6.6.0 in /modules/elasticsearch (#1191)
Bump transport from 6.5.4 to 6.6.0 in /modules/elasticsearch (#1191)

Bumps [transport](https://github.com/elastic/elasticsearch) from 6.5.4 to 6.6.0.
- [Release notes](https://github.com/elastic/elasticsearch/releases)
- [Commits](https://github.com/elastic/elasticsearch/compare/v6.5.4...v6.6.0)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
rnorth/test-containers,outofcoffee/testcontainers-java,testcontainers/testcontainers-java,outofcoffee/testcontainers-java,rnorth/test-containers,testcontainers/testcontainers-java,testcontainers/testcontainers-java,rnorth/test-containers,outofcoffee/testcontainers-java