Backtickle 0.2.1

See CHANGELOG.md.

What's Changed

• Fix the real CodeQL code scanning findings by @masud90 in #29
• Add a daily update check with an opt-out setting by @masud90 in #30
• Release 0.2.1 by @masud90 in #31

Full Changelog: v0.2.0...v0.2.1