Add support for Mistral OCR

[ivoencarnacao]

Expected Behavior
Integrating mistral-ocr-latest into Spring AI would provide users with document processing capabilities, aligning with Spring AI's objective of enhancing AI model integration.

Current Behavior
There is no current support for mistral-ocr-latest, although there is an open PR #2404

Context
Press release

[apappascs]

This Pr resolves this issue #2404

[apappascs]

Thank you for taking the time to review and merge the pr @ilayaperumalg . I think this issue can now be resolved

[ilayaperumalg]

@apappascs thank you once again!