Upgrade enturclient to 0.2.1

[hfurubotten]

Description:

Upgrades enturclient package to version 0.2.1. This fixes an issue where some users got more sensors than actually should be discovered by the client.

Related issue (if applicable): fixes #29282

Example entry for configuration.yaml (if applicable):

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.
• I have followed the development checklist

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

• The manifest file has all fields filled out correctly. Update and include derived files by running python3 -m script.hassfest.
• New or updated dependencies have been added to requirements_all.txt by running python3 -m script.gen_requirements_all.
• Untested files have been added to .coveragerc.