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.json

@@ -158,7 +158,7 @@
     "websocket": "1.0.24",
     "whatwg-fetch": "0.11.1",
     "wrap-md-editor": "^0.2.20",
-    "xmldom": "0.1.27"
+    "xmldom": "0.6.0"
   },
   "devDependencies": {
     "@storybook/addon-knobs": "3.2.19",

yarn.lock

@@ -12537,10 +12537,10 @@ xml-name-validator@^3.0.0:
   resolved "https://registry.yarnpkg.com/xml-name-validator/-/xml-name-validator-3.0.0.tgz#6ae73e06de4d8c6e47f9fb181f78d648ad457c6a"
   integrity sha512-A5CUptxDsvxKJEU3yO6DuWBSJz/qizqzJKOMIfUJHETbBw/sFaDxgd6fxm1ewUaM0jZ444Fc5vC5ROYurg/4Pw==
 
-xmldom@0.1.27:
-  version "0.1.27"
-  resolved "https://registry.yarnpkg.com/xmldom/-/xmldom-0.1.27.tgz#d501f97b3bdb403af8ef9ecc20573187aadac0e9"
-  integrity sha1-1QH5ezvbQDr4757MIFcxh6rawOk=
+xmldom@0.6.0:
+  version "0.6.0"
+  resolved "https://registry.yarnpkg.com/xmldom/-/xmldom-0.6.0.tgz#43a96ecb8beece991cef382c08397d82d4d0c46f"
+  integrity sha512-iAcin401y58LckRZ0TkI4k0VSM1Qg0KGSc3i8rU+xrxe19A/BN1zHyVSJY7uoutVlaTSzYyk/v5AmkewAP7jtg==
 
 xmlhttprequest@1.8.0:
   version "1.8.0"