feat(opensearchservice): s3 vectors engine

[badmintoncryer]

Issue # (if applicable)

None

Reason for this change

Amazon OpenSearch Service offers the ability to use Amazon S3 as a vector engine for vector indexes.

https://docs.aws.amazon.com/opensearch-service/latest/developerguide/s3-vector-opensearch-integration-engine.html

Description of changes

• Add s3VectorsEngineEnabled prop to DomainProps
• Add validation for s3 vectors engine
  • OpenSearch version 2.19 or later
  • OpenSearch Optimized instances
  • Latest patch version for your OpenSearch release
  • Conditions are described in the docs.

Describe any new or updated permissions being added

None

Description of how you validated changes

Add both unit and integ tests.

Checklist

• My code adheres to the CONTRIBUTING GUIDE and DESIGN GUIDELINES

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By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license

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