build(deps): bump org.opensearch:opensearch-testcontainers from 2.1.1…

… to 2.1.2 (#2171)

Bumps [org.opensearch:opensearch-testcontainers](https://github.com/opensearch-project/opensearch-testcontainers) from 2.1.1 to 2.1.2.
- [Release notes](https://github.com/opensearch-project/opensearch-testcontainers/releases)
- [Commits](opensearch-project/opensearch-testcontainers@v2.1.1...v2.1.2)

---
updated-dependencies:
- dependency-name: org.opensearch:opensearch-testcontainers
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

embedded-opensearch/pom.xml

@@ -14,7 +14,7 @@
 
     <properties>
         <spring-data-opensearch-starter.version>1.5.4</spring-data-opensearch-starter.version>
-        <opensearch-testcontainers.version>2.1.1</opensearch-testcontainers.version>
+        <opensearch-testcontainers.version>2.1.2</opensearch-testcontainers.version>
     </properties>
 
     <dependencies>