Bump elasticsearch.version from 7.1.1 to 7.11.2

Bumps `elasticsearch.version` from 7.1.1 to 7.11.2.

Updates `elasticsearch` from 7.1.1 to 7.11.2
- [Release notes](https://github.com/elastic/elasticsearch/releases)
- [Commits](elastic/elasticsearch@v7.1.1...v7.11.2)

Updates `elasticsearch-rest-client` from 7.1.1 to 7.11.2
- [Release notes](https://github.com/elastic/elasticsearch/releases)
- [Commits](elastic/elasticsearch@v7.1.1...v7.11.2)

Updates `elasticsearch-rest-high-level-client` from 7.1.1 to 7.11.2
- [Release notes](https://github.com/elastic/elasticsearch/releases)
- [Commits](elastic/elasticsearch@v7.1.1...v7.11.2)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pom.xml

@@ -51,7 +51,7 @@
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <java.version>1.8</java.version>
-        <elasticsearch.version>7.1.1</elasticsearch.version>
+        <elasticsearch.version>7.11.2</elasticsearch.version>
         <spring-boot.version>2.1.6.RELEASE</spring-boot.version>
         <!-- 打包跳过单元测试 -->
         <skipTests>true</skipTests>