Update Cohere API from v1 to v2

[okirialbert]

Description

We need to update the Cohere provider in Apache Airflow from using the v1 API to the recently released v2 API. This update will ensure compatibility with the latest features and improvements made by Cohere.

Use case/motivation

• Compatibility: Ensure that Airflow users can leverage new features introduced in Cohere v2.
• Performance: Potentially benefit from performance enhancements in v2.
• Security: Upgrade to more secure API endpoints if any security issues were addressed in the new version.
• Feature Usage: Utilize any new functionalities like better document structuring or tool calls for more efficient workflow management.

Related issues

#45267 focuses on updating the Cohere provider in Apache Airflow to use the Cohere API v2.

Related issues
#38465
#38349

Are you willing to submit a PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct

[boring-cyborg]

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