Revert "Bump pyotgw to 0.4b0 (#19618)"

[mvn23]

Description:

This reverts commit dae4543.
There's a bug in the new version of the library that may cause 100% CPU usage, rendering Home Assistant unresponsive.

Related issue (if applicable): unfixes #17263

Pull request in home-assistant.io with documentation (if applicable): N/A

Example entry for configuration.yaml (if applicable):

N/A

Checklist:

• The code change is tested and works locally.
• Local tests pass with tox. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.

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

• N/A

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:

• N/A