Spring-ai feat: add operation type and provider metrics to advisor

Add AI_OPERATION_TYPE and AI_PROVIDER as low cardinality key names to advisor observations. The advisor AI_OPERATION_TYPE is set to 'framework' and the AI_PROVIDER to 'spring_ai'.

Resolves #1660

Comment From: ilayaperumalg

LGTM, merging.

Comment From: ilayaperumalg

Rebased and merged as 13d20741