Removes the fixed version number and uses plugin version instead in the unit tests.#254

mashhurs merged 1 commit intoelastic:mainelastic/logstash-filter-elastic_integration:mainfrom

mashhurs:fix-unit-tests-after-version-compatibility-changemashhurs/logstash-filter-elastic_integration:fix-unit-tests-after-version-compatibility-changeCopy head branch name to clipboard