lodash：4.17.15组件存在CVE-2020-8203漏洞建议升级

[QiAnXinCodeSafe]

Sentinel/sentinel-dashboard/src/main/webapp/resources/package-lock.json

Lines 2418 to 2421 in 55a8294

	"lodash": {
	"version": "4.17.15",
	"resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
	"integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A=="

推荐升级版本：
4.17.20