Bump web-ext-submit from 6.2.0 to 6.3.0

Bumps [web-ext-submit](https://github.com/fregante/web-ext-submit) from 6.2.0 to 6.3.0.
- [Release notes](https://github.com/fregante/web-ext-submit/releases)
- [Commits](fregante/web-ext-submit@v6.2.0...v6.3.0)

---
updated-dependencies:
- dependency-name: web-ext-submit
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]