fix: Allows clients to pass in an HTTP Session

[coessiane]

This pull request introduces changes to the __init__ method of the compass.py module, which is responsible for initializing a compass client to interact with the Compass API. The modifications primarily involve updating the handling of the default_timeout and introducing a new http_session parameter.

Changes:

• The default_timeout parameter's type hint has been updated from int to int | None, indicating that it can now accept None as a valid value.
• A new parameter, http_session, has been added to the __init__ method, allowing for the specification of an HTTP session with a custom timeout.
• The instantiation of the SessionWithDefaultTimeout class has been replaced with a conditional assignment, setting self.session to either the provided http_session or a new instance of requests.Session().
• A warning message is logged if default_timeout is not None, indicating that the variable is deprecated and will not have any effect. This message also provides guidance on using the http_session parameter for specifying HTTP request timeouts.

[benrules3]

@coessiane I believe @raphael-cohere added this timeout, have you aligned with him on this switch? Otherwise this LGTM.