v0.21.3

What's Changed

• chore: clean up unintended file by @muktihari in #381
• cli: update fitactivity code doc by @muktihari in #382
• fix: encoder handling WriteSeeker by @muktihari in #383
• feat: encoder enable dynamic protocol version by @muktihari in #384
• cli: fitactivity conceal keep original protocol version by @muktihari in #385
• chore: add missing copyright header by @muktihari in #386
• test: filedef simplify test by @muktihari in #387
• feat: kit/semicircles now handles invalid value by @muktihari in #388
• chore: mesgdef clean up code by @muktihari in #389
• fix: encoder WriteSeeker now relative to current offset by @muktihari in #390
• docs: update usage.md by @muktihari in #391
• docs: update usage.md by @muktihari in #392
• chore(deps): bump actions/upload-artifact from 4.3.6 to 4.4.0 by @dependabot in #393
• chore(deps): bump golang.org/x/text from 0.17.0 to 0.18.0 by @dependabot in #396
• cli: refactor fitactivity by @muktihari in #398
• cli: fitactivity add message remover by @muktihari in #399
• cli: fitactivity fix remover by @muktihari in #400
• chore: add missing copyright header by @muktihari in #401

Full Changelog: v0.21.2...v0.21.3