v0.2.1

Changelog

• 407e458 build(deps): bump actions/checkout from 4 to 6 (#1)
• 1a4dd60 build(deps): bump actions/setup-go from 5 to 6 (#3)
• a7c80d9 build(deps): bump codecov/codecov-action from 4 to 5 (#2)
• a328c91 feat: add version check with update notification
• c4ca577 fix(ci): require Go 1.24 (matches go.mod)
• f0a3b28 fix(release): use Go 1.24
• 54a085f style: fix gofmt formatting in version.go