0.2.21

What's Changed

• Correct indexed sensors with last_reset (#121) @emontnemery
• Bump pylint from 2.9.3 to 2.11.1 (#117) @dependabot
• Prepare for pylint 2.11 (#119) @emontnemery
• Bump black from 21.6b0 to 21.9b0 (#116) @dependabot
• Bump isort from 5.9.1 to 5.9.3 (#113) @dependabot
• Bump mypy from 0.902 to 0.910 (#107) @dependabot
• Bump flake8 from 3.9.2 to 4.0.1 (#118) @dependabot