Provide API Key Rotation

[window9u]

What would you like to be added:

Currently, the public_key and private_key are immutable once set. However, in cases such as key exposure or security concerns, there should be a way to rotate or update the API keys.

Additionally, the current key generation method uses MongoDB xid, which should be updated to a more secure random key generation logic. This is addressed in PR#1010.

Why is this needed:

Implementing this enhancement would improve security and make key management easier for administrators, allowing them to rotate keys as needed in response to security events.