Event search doesn't serialize the query right

[edewit]

Describe the bug
When searching for events one can specify multiple 'type's. But the query isn't serialized in a way that the server picks them up.

To Reproduce
Steps to reproduce the behavior:

      const events = await kcAdminClient.realms.findAdminEvents({
        realm: currentRealmName,
        type: ['LOGIN', 'LOGOUT'],
      });

Expected behavior
A query string looking like type=LOGIN&type=LOGOUT, but it does type[]=LOGIN&type[]=LOGOUT this is not what keycloak expects.