Bump opensearch.version from 2.11.1 to 3.4.0

Bumps `opensearch.version` from 2.11.1 to 3.4.0.

Updates `org.opensearch:opensearch` from 2.11.1 to 3.4.0
- [Release notes](https://github.com/opensearch-project/OpenSearch/releases)
- [Changelog](https://github.com/opensearch-project/OpenSearch/blob/main/CHANGELOG.md)
- [Commits](opensearch-project/OpenSearch@2.11.1...3.4.0)

Updates `org.opensearch.plugin:lang-painless` from 2.11.1 to 3.4.0
- [Release notes](https://github.com/opensearch-project/OpenSearch/releases)
- [Changelog](https://github.com/opensearch-project/OpenSearch/blob/main/CHANGELOG.md)
- [Commits](opensearch-project/OpenSearch@2.11.1...3.4.0)

Updates `org.opensearch.plugin:opensearch-scripting-painless-spi` from 2.11.1 to 3.4.0
- [Release notes](https://github.com/opensearch-project/OpenSearch/releases)
- [Changelog](https://github.com/opensearch-project/OpenSearch/blob/main/CHANGELOG.md)
- [Commits](opensearch-project/OpenSearch@2.11.1...3.4.0)

---
updated-dependencies:
- dependency-name: org.opensearch:opensearch
  dependency-version: 3.4.0
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.opensearch.plugin:lang-painless
  dependency-version: 3.4.0
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.opensearch.plugin:opensearch-scripting-painless-spi
  dependency-version: 3.4.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

astra/pom.xml

@@ -27,7 +27,7 @@
         <jackson.annotations.version>2.21</jackson.annotations.version>
         <jackson.databind.version>2.21.0</jackson.databind.version>
         <lucene.version>9.7.0</lucene.version>
-        <opensearch.version>2.11.1</opensearch.version>
+        <opensearch.version>3.4.0</opensearch.version>
         <curator.version>5.8.0</curator.version>
         <log4j.version>2.25.3</log4j.version>
         <aws.sdk.version>2.41.10</aws.sdk.version>