deps(maven): bump version.elasticsearch from 7.16.1 to 7.16.2

Bumps `version.elasticsearch` from 7.16.1 to 7.16.2.

Updates `elasticsearch-x-content` from 7.16.1 to 7.16.2
- [Release notes](https://github.com/elastic/elasticsearch/releases)
- [Commits](elastic/elasticsearch@v7.16.1...v7.16.2)

Updates `elasticsearch-rest-client` from 7.16.1 to 7.16.2
- [Release notes](https://github.com/elastic/elasticsearch/releases)
- [Commits](elastic/elasticsearch@v7.16.1...v7.16.2)

---
updated-dependencies:
- dependency-name: org.elasticsearch:elasticsearch-x-content
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.elasticsearch.client:elasticsearch-rest-client
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

parent/pom.xml

@@ -50,7 +50,7 @@
     <version.commons-math>3.6.1</version.commons-math>
     <version.commons-codec>1.15</version.commons-codec>
     <version.docker-java-api>3.2.12</version.docker-java-api>
-    <version.elasticsearch>7.16.1</version.elasticsearch>
+    <version.elasticsearch>7.16.2</version.elasticsearch>
     <version.error-prone>2.10.0</version.error-prone>
     <version.grpc>1.43.0</version.grpc>
     <version.gson>2.8.9</version.gson>