docs: Added blog post: "From Raw Data to Model Serving - AI/ML Lifecycle Blueprint with Kubeflow and Feast." (#5520)

* Add blog post: "From Raw Data to Model Serving - AI/ML Lifecycle Blueprint with Kubeflow and Feast."

Signed-off-by: Helber Belmiro <[email protected]>

* Refine terminology, add synthetic data generation steps, clarify feature definitions, and enhance pipeline instructions.

Signed-off-by: Helber Belmiro <[email protected]>

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Signed-off-by: Helber Belmiro <[email protected]>

Author: hbelmiro