Elasticsearch java client migration to 8.15

Description:

• Elasticsearch java client migration to 8.15
• Added optional configuration to int tests for new elasticsearch.

How to test:

Integration tests and info endpoint

{
    "groupId": "org.opengroup.osdu.indexer",
    "artifactId": "indexer-gc",
    "version": "0.28.0-SNAPSHOT",
    "buildTime": "2024-10-21T10:44:33.062Z",
    "branch": "trusted-elasticsearch8-java-client",
    "commitId": "fc1e2077b350ef55e10dd67277ae2b6c35e66a2f",
    "commitMessage": "separate redis",
    "connectedOuterServices": [
        {
            "name": "Redis-RedisCacheBuilder$2",
            "version": "7.2.6"
        },
        {
            "name": "Redis-RedisCacheBuilder$2",
            "version": "7.2.6"
        },
        {
            "name": "Redis-RedisCacheBuilder$2",
            "version": "7.2.6"
        },
        {
            "name": "ElasticSearch-osdu",
            "version": "8.15.3"
        },
        {
            "name": "ElasticSearch-second",
            "version": "8.15.3"
        }
    ]
}

Changes include:

• Refactor (a non-breaking change that improves code maintainability).
• Bugfix (a non-breaking change that solves an issue).
• New feature (a non-breaking change that adds functionality).
• Breaking change (a change that is not backward-compatible and/or changes current functionality).

Changes in:

• Core

Dev Checklist:

• Added Unit Tests, wherever applicable.
• Updated the Readme, if applicable.
• Existing Tests pass
• Verified functionality locally
• Self Reviewed my code for formatting and complex business logic.

Other comments:

Any comments to approvers here