Update dependency @koa/cors to v5

[flovogt]

Great work! Any plans to update the dependency to latest version of @koa/cors?

[janpe]

And this vulnerability would probably be the reason: https://security.snyk.io/vuln/SNYK-JS-KOACORS-6117545

[pjammula]

Hello lwsjs/cors team,
Can you pick this issue and update dependency of @kao/cors to v5?
We are also blackduck violations due to this vulnerability.

[75lb]

Thanks for letting me know and sorry about the delay, I raised an objection regarding recent breaking changes in @koa/cors but for now, since it's a trivial issue (returning either * or the passed in origin have the same effect), I'm working around it.

Fixed and released in @lwsjs/cors v4.2.1. Please update or reinstall your local-web-server.

[pjammula]

Thank you for the quick turn around!
Will re-install and update here.