[Security] upgrade elliptic dependency

[slievrly]

elliptic

GHSA-vjh7-7g9h-fjfh
https://cwe.mitre.org/data/definitions/200.html

Affected versions: <= 6.6.0
Patched version: 6.6.1

https://github.com/apache/incubator-seata/blob/2.x/console/src/main/resources/static/console-fe/package-lock.json