Build(deps): Bump org.elasticsearch.client:elasticsearch-rest-client (#830)

Bumps [org.elasticsearch.client:elasticsearch-rest-client](https://github.com/elastic/elasticsearch) from 9.0.1 to 9.1.2.
- [Release notes](https://github.com/elastic/elasticsearch/releases)
- [Changelog](https://github.com/elastic/elasticsearch/blob/main/CHANGELOG.md)
- [Commits](elastic/elasticsearch@v9.0.1...v9.1.2)

---
updated-dependencies:
- dependency-name: org.elasticsearch.client:elasticsearch-rest-client
  dependency-version: 9.1.2
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]

basyx.common/basyx.querycore/pom.xml

@@ -22,7 +22,7 @@
         <dependency>
             <groupId>org.elasticsearch.client</groupId>
             <artifactId>elasticsearch-rest-client</artifactId>
-            <version>9.0.1</version>
+            <version>9.1.2</version>
         </dependency>
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>