Downgrade netatmo warning-level log to info-level

[glpatcern]

Description:

This mini-PR changes a recently-added log to info level, as the content of the log is not problematic.

Related issue (if applicable): fixes #15618

Example entry for configuration.yaml N/A

Checklist:

• The code change is tested and works locally.
• Local tests pass with tox. Your PR cannot be merged unless tests pass

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated in home-assistant.github.io

If the code communicates with devices, web services, or third-party tools:

• New dependencies have been added to the REQUIREMENTS variable (example).
• New dependencies are only imported inside functions that use them (example).
• New or updated dependencies have been added to requirements_all.txt by running script/gen_requirements_all.py.
• New files were added to .coveragerc.

If the code does not interact with devices:

• Tests have been added to verify that the new code works.

[wilfredsmit]

Thanks for the update! Logfile is much cleaner now! 😃👍🏼