### Is there an existing issue for this?

- [X] I have searched the existing issues

### Enhancement description

OpenSearch 2.9 supports a lot of useful features that AWS opensearch also supports, such as being able to use filters in on FAISS searches in the KNN plugin. It would be great to have these in localstack!

### 🧑‍💻 Implementation

this may be as trivial as a version bump? As far as I can tell, localstack is just pulling the opensearch docker image

### Anything else?

_No response_
response = requests.get(opensearch_document_path)
        assert (
            "I'm just a simple man" in response.text
        ), f"document not found({response.status_code}): {response.text}"
    @markers.aws.unknown
    def test_search(self, opensearch_endpoint, opensearch_document_path):
        index = "/".join(opensearch_document_path.split("/")[:-2])
        
        response = requests.post(f"{opensearch_endpoint}/_refresh", headers=COMMON_HEADERS)
        assert response.ok
        search = {"query": {"match": {"last_name": "Fett"}}}
        response = requests.get(f"{index}/_search", data=json.dumps(search), headers=COMMON_HEADERS)
        assert (
            "I'm just a simple man" in response.text
        ), f"search unsuccessful({response.status_code}): {response.text}"
    @markers.aws.unknown
    def test_endpoint_strategy_path(self, monkeypatch, opensearch_create_domain, aws_client):
        monkeypatch.setattr(config, "OPENSEARCH_ENDPOINT_STRATEGY", "path")
        domain_name = f"opensearch-domain-{short_uid()}"
        opensearch_create_domain(DomainName=domain_name)
        status = aws_client.opensearch.describe_domain(DomainName=domain_name)["DomainStatus"]
        assert "Endpoint" in status
        endpoint = status["Endpoint"]
        assert endpoint.endswith(f"/{domain_name}")
    @markers.aws.unknown
    def test_endpoint_strategy_port(self, monkeypatch, opensearch_create_domain, aws_client):