Bump web-ext from 6.0.0 to 6.3.0
Bump web-ext from 6.0.0 to 6.3.0

Bumps [web-ext](https://github.com/mozilla/web-ext) from 6.0.0 to 6.3.0.
- [Release notes](https://github.com/mozilla/web-ext/releases)
- [Commits](https://github.com/mozilla/web-ext/compare/6.0.0...6.3.0)

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

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
sblask/firefox-tab-deque