fix: upgrade @auth0/xmldom from 0.1.21 to 0.1.23

Snyk has created this PR to upgrade @auth0/xmldom from 0.1.21 to 0.1.23.

See this package in npm:
https://www.npmjs.com/package/@auth0/xmldom

See this project in Snyk:
https://app.snyk.io/org/iam-KPWiZJYntQ5PW7Pgqw4LGq/project/c2bc815d-8c3f-4a84-bab4-114ad04b82c0?utm_source=github&utm_medium=referral&page=upgrade-pr

package.json

@@ -30,7 +30,7 @@
     "querystring": "^0.2.0",
     "saml": "^3.0.1",
     "xml-crypto": "^2.0.0",
-    "@auth0/xmldom": "0.1.21",
+    "@auth0/xmldom": "0.1.23",
     "xpath": "0.0.5",
     "xtend": "^1.0.3"
   },