Bump @parcel/config-webextension from 2.10.2 to 2.10.3

Bumps [@parcel/config-webextension](https://github.com/parcel-bundler/parcel) from 2.10.2 to 2.10.3.
- [Release notes](https://github.com/parcel-bundler/parcel/releases)
- [Changelog](https://github.com/parcel-bundler/parcel/blob/v2/CHANGELOG.md)
- [Commits](parcel-bundler/parcel@v2.10.2...v2.10.3)

---
updated-dependencies:
- dependency-name: "@parcel/config-webextension"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>