Bump flutter_svg, flutter_launcher_icons and flutter_html

Bumps [flutter_svg](https://github.com/dnfield/flutter_svg), [flutter_launcher_icons](https://github.com/fluttercommunity/flutter_launcher_icons) and [flutter_html](https://github.com/Sub6Resources/flutter_html). These dependencies needed to be updated together.

Updates `flutter_svg` from 0.23.0+1 to 2.0.5
- [Release notes](https://github.com/dnfield/flutter_svg/releases)
- [Changelog](https://github.com/dnfield/flutter_svg/blob/v2.0.5/CHANGELOG.md)
- [Commits](dnfield/flutter_svg@v0.23.0...v2.0.5)

Updates `flutter_launcher_icons` from 0.11.0 to 0.13.0
- [Release notes](https://github.com/fluttercommunity/flutter_launcher_icons/releases)
- [Changelog](https://github.com/fluttercommunity/flutter_launcher_icons/blob/master/CHANGELOG.md)
- [Commits](fluttercommunity/flutter_launcher_icons@v0.11.0...v0.13.0)

Updates `flutter_html` from 2.2.1 to 3.0.0-alpha.6
- [Release notes](https://github.com/Sub6Resources/flutter_html/releases)
- [Changelog](https://github.com/Sub6Resources/flutter_html/blob/master/CHANGELOG.md)
- [Commits](Sub6Resources/flutter_html@2.2.1...flutter_html-v3.0.0-alpha.6)

---
updated-dependencies:
- dependency-name: flutter_svg
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: flutter_launcher_icons
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: flutter_html
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]