chore(deps): update opensearchproject/opensearch docker tag to v1.3.16

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
opensearchproject/opensearch	patch	1.3.15 -> 1.3.16

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Release Notes

opensearch-project/OpenSearch (opensearchproject/opensearch)

### [`v1.3.16`](https://togithub.com/opensearch-project/OpenSearch/releases/tag/1.3.16) [Compare Source](https://togithub.com/opensearch-project/OpenSearch/compare/1.3.15...1.3.16) #### 2024-04-18 Version 1.3.16 Release Notes ##### Upgrades - Bump `netty` from 4.1.107.Final to 4.1.109.Final ([#​12924](https://togithub.com/opensearch-project/OpenSearch/pull/12924), [#​13233](https://togithub.com/opensearch-project/OpenSearch/pull/13233))

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