v0.2.8

What's Changed

• release: make releasing a decision rather than a side effect of merging by @simonorzel26 in #112
• migrations: prove the failure path, and make rule 3 possible to follow by @simonorzel26 in #113
• release: give the upgrade gate data to trip over by @simonorzel26 in #114
• ci: run shellcheck, and fix what it found by @simonorzel26 in #115

Full Changelog: v0.2.7...v0.2.8