Deprecate ChunkingOptions parameter

[ashm-dev]

Marked ChunkingOptions parameter as @deprecated in multiple methods. Updated method signatures in InferenceService and SenderService classes. No functionality changes, just preparing for future removal.

• Have you signed the contributor license agreement?
• Have you followed the contributor guidelines?
• If submitting code, have you built your formula locally prior to submission with gradle check?
• If submitting code, is your pull request against main? Unless there is a good reason otherwise, we prefer pull requests against main and will backport as needed.
• If submitting code, have you checked that your submission is for an OS and architecture that we support?
• If you are submitting this code for a class then read our policy for that.

[cla-checker-service]

💚 CLA has been signed

[ashm-dev]

Closes #117193

[ashm-dev]

Hello! 👋

This is my first PR to the ElasticSearch project, and I’m just starting to learn and explore this amazing system. I’d greatly appreciate any feedback, comments, or suggestions to help improve this PR or my approach to working with ElasticSearch.

Thank you in advance for your time and support!

[elasticsearchmachine]

Pinging @elastic/ml-core (Team:ML)