chore(deps): bump xml2js and tfx-cli

Bumps [xml2js](https://github.com/Leonidas-from-XIV/node-xml2js) to 0.5.0 and updates ancestor dependency [tfx-cli](https://github.com/Microsoft/tfs-cli). These dependencies need to be updated together.


Updates `xml2js` from 0.4.23 to 0.5.0
- [Commits](https://github.com/Leonidas-from-XIV/node-xml2js/commits/0.5.0)

Updates `tfx-cli` from 0.12.0 to 0.16.0
- [Release notes](https://github.com/Microsoft/tfs-cli/releases)
- [Commits](https://github.com/Microsoft/tfs-cli/commits)

---
updated-dependencies:
- dependency-name: xml2js
  dependency-type: indirect
- dependency-name: tfx-cli
  dependency-type: direct:development
...

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