Bump jsonwebtoken from 8.5.1 to 9.0.0 in /sso-consumer

Bumps [jsonwebtoken](https://github.com/auth0/node-jsonwebtoken) from 8.5.1 to 9.0.0.
- [Release notes](https://github.com/auth0/node-jsonwebtoken/releases)
- [Changelog](https://github.com/auth0/node-jsonwebtoken/blob/master/CHANGELOG.md)
- [Commits](auth0/node-jsonwebtoken@v8.5.1...v9.0.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

sso-consumer/package-lock.json

@@ -15,7 +15,7 @@
     "ejs-mate": "^2.3.0",
     "express": "^4.16.3",
     "express-session": "^1.15.6",
-    "jsonwebtoken": "^8.3.0",
+    "jsonwebtoken": "^9.0.0",
     "morgan": "^1.9.0"
   }
 }