Remove support for webpack-dev-server v3 inside @cypress/webpack-dev-server

[AtofStryker]

What would you like?

With the next major version of Cypress, I would like to remove support for webpack-dev-server v3

Why is this needed?

webpack-dev-server v3 is now two major versions behind and hasn't been released in over 2 years 3.11.2. Removing the code from the @cypress/webpack-dev-server would lessen the burden of maintenance

Other

users would still be able to use CT with webpack-dev-server v3 support by using an older version of @cypress/webpack-dev-server. Support would no longer ship with Cypress by default

[MikeMcC399]

• Removing webpack-dev-server v3 is a prerequisite for removing the deprecated npm module @types/webpack-dev-server (see Renovate deprecation list Dependency Dashboard #3777). See also Update to webpack-dev-server 4.7.0 or later #30141

• webpack-dev-server@4.7.0 introduced built-in types. Any earlier versions require @types/webpack-dev-server.

[cypress-bot]

Released in 14.0.0.

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