build(deps): bump xmldom from 0.1.27 to 0.6.0

Bumps [xmldom](https://github.com/xmldom/xmldom) from 0.1.27 to 0.6.0.
- [Release notes](https://github.com/xmldom/xmldom/releases)
- [Changelog](https://github.com/xmldom/xmldom/blob/master/CHANGELOG.md)
- [Commits](xmldom/xmldom@v0.1.27...0.6.0)

---
updated-dependencies:
- dependency-name: xmldom
  dependency-type: direct:production
...

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

Author: dependabot[bot]

package-lock.json

@@ -40,7 +40,7 @@
     "object-assign": "^4.0.1",
     "pngparse": "^2.0.1",
     "ws": "^3.3.1",
-    "xmldom": "^0.1.19",
+    "xmldom": "^0.6.0",
     "cbor-js": "^0.1.0",
     "socket.io": "2.2.0"
   },