Release v0.9.20

This release fixes the "Detected blocking call" error in issue #83 by updating to the Home Assistant storage helper for persistent settings, and removing the Python pickle module.

Note: Stored settings from v0.9.19 and earlier will not be automatically migrated. The following config settings for each device will need to be set if you had them enabled before:

• Vent Mode
• Emergency Heat

What's Changed

• Bump WillCodeForCats/python-lint-action from 1.0.4 to 1.0.5 by @dependabot in #80
• Bump WillCodeForCats/python-lint-action from 1.0.5 to 1.0.6 by @dependabot in #82
• Use HA storage helper for stored settings by @WillCodeForCats in #84

Full Changelog: v0.9.19...v0.9.20