fix: use brotli compression for elmo endpoints | LLMO-1076

[calvarezg]

Uses br compression for endpoints in LlmoController.
This would allow improving performance and prevent errors due to the Lambda limitation of 6MB size responses.

Related issues

https://jira.corp.adobe.com/browse/LLMO-1076

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[github-actions]

This PR will trigger a patch release when merged.

[solaris007]

🎉 This PR is included in version 1.224.2 🎉

The release is available on GitHub release

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