build(deps): bump flagset from 0.4.6 to 0.4.7

Bumps [flagset](https://github.com/enarx/flagset) from 0.4.6 to 0.4.7.
- [Commits](enarx/flagset@v0.4.6...v0.4.7)

---
updated-dependencies:
- dependency-name: flagset
  dependency-version: 0.4.7
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]