Bump xml2js from 0.4.19 to 0.5.0 in /source/custom-resource

Bumps [xml2js](https://github.com/Leonidas-from-XIV/node-xml2js) from 0.4.19 to 0.5.0.
- [Release notes](https://github.com/Leonidas-from-XIV/node-xml2js/releases)
- [Commits](Leonidas-from-XIV/node-xml2js@0.4.19...0.5.0)

---
updated-dependencies:
- dependency-name: xml2js
  dependency-type: indirect
...

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