Use literal string interpolation in integrations T-W (f-strings)

[frenck]

Description:

Upgrades code to use string formatting using literal string interpolation format defined in PEP 498. Easier to read, generally smaller, and finally possible now 3.6 is the min version.

PEP 498: https://www.python.org/dev/peps/pep-0498

This PR converts code in integrations starting with the letter T, U,V and W.

⚠️ I expect codecov to fail on this one 🤷‍♂

Related issue (if applicable): n/a

Pull request with documentation for home-assistant.io (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.
• I have followed the development checklist

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

• Documentation added/updated in home-assistant.io

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.

If the code does not interact with devices:

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