Build(deps): bump @auth0/auth0-spa-js from 1.20.1 to 1.21.0

Bumps [@auth0/auth0-spa-js](https://github.com/auth0/auth0-spa-js) from 1.20.1 to 1.21.0.
- [Release notes](https://github.com/auth0/auth0-spa-js/releases)
- [Changelog](https://github.com/auth0/auth0-spa-js/blob/master/CHANGELOG.md)
- [Commits](https://github.com/auth0/auth0-spa-js/compare/v1.20.1...v1.21.0)

package.json

@@ -8,7 +8,7 @@
   "private": true,
   "dependencies": {
     "@apollo/client": "^3.5.10",
-    "@auth0/auth0-spa-js": "^1.20.1",
+    "@auth0/auth0-spa-js": "^1.21.0",
     "@nuxtjs/composition-api": "^0.32.0",
     "@nuxtjs/i18n": "^7.2.0",
     "@nuxtjs/moment": "^1.1.0",