cli-plugin-e2e-cypress: Upgrade to Cypress v5

[lassesteffen]

What problem does this feature solve?

Users can use all the new features of cypress v5 like cross browser testing

What does the proposed API look like?

Update the package.json

[loter]

Hi @sodatea , what is the PR number?

[haoqunjiang]

#5139

[morgant]

This would also improve BSD support as noted in a comment to the aforementioned PR.

[lassesteffen]

v5 was release 5 days ago: https://github.com/cypress-io/cypress/releases

[manuelmazzuola]

any update?
just installed 4.5.9 version and cypress version is 3.x.x

[haoqunjiang]

@manuelmazzuola
See https://github.com/vuejs/vue-cli/releases/tag/v4.5.9

[haoqunjiang]

Updated in v5.0.0-alpha.0