Bump fast-xml-parser from 4.3.6 to 4.4.1 in /packages/itwin/tree-widget

Bumps [fast-xml-parser](https://github.com/NaturalIntelligence/fast-xml-parser) from 4.3.6 to 4.4.1.
- [Release notes](https://github.com/NaturalIntelligence/fast-xml-parser/releases)
- [Changelog](https://github.com/NaturalIntelligence/fast-xml-parser/blob/master/CHANGELOG.md)
- [Commits](NaturalIntelligence/fast-xml-parser@v4.3.6...v4.4.1)

---
updated-dependencies:
- dependency-name: fast-xml-parser
  dependency-version: 4.4.1
  dependency-type: direct:development
...

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

Author: dependabot[bot]