fix(deps): update dependency co.elastic.clients:elasticsearch-java to v8.15.3

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
co.elastic.clients:elasticsearch-java	8.15.2 -> 8.15.3

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Release Notes

elastic/elasticsearch-java (co.elastic.clients:elasticsearch-java)

### [`v8.15.3`](https://redirect.github.com/elastic/elasticsearch-java/compare/v8.15.2...v8.15.3)

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Configuration

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Code Coverage

Total Project Coverage	85.36%	:white_check_mark:

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 82.34%. Comparing base (ee968eb) to head (3fb75ab). Report is 2 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #608 +/- ## ========================================== - Coverage 82.46% 82.34% -0.13% ========================================== Files 64 64 Lines 1751 1784 +33 Branches 84 84 ========================================== + Hits 1444 1469 +25 - Misses 248 256 +8 Partials 59 59 ```

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