breaking: remove @vue/cli-service from Cypress Component Testing

[AtofStryker]

• Closes remove support for @vue/cli-service #30481

Additional details

Vue CLI service is no longer maintained. Because of this, we are removing Vue CLI support from Cypress Component Testing. Users who are using vue-cli as a framework option will need to move to using a bundler such as vite or webpack. This is covered in the migration guide in cypress-io/cypress-documentation#5989. When starting Cypress 14, users using vue-cli will experience an error like this:

Once a user migrates to either webpack or vite and changes their config from

const { defineConfig } = require('cypress')

module.exports = defineConfig({
  component: {
    devServer: {
      framework: 'vue-cli',
      bundler: 'webpack',
    },
  },
})

to looking something like this:

const { defineConfig } = require('cypress')

module.exports = defineConfig({
  component: {
    devServer: {
      framework: 'vue',
      bundler: 'vite', // or 'webpack'
    },
  },
})

the project will run successfully once again.

Steps to test

Vue CLI tests have been removed, but vue/webpack tests have been added to help fill in the gap of vue + webpack testing

How has the user experience changed?

PR Tasks

• Have tests been added/updated?
• Has a PR for user-facing changes been opened in cypress-documentation?
• Have API changes been updated in the type definitions?

[cypress]

cypress    Run #58287

Run Properties:   Passed #58287  •  90b43c95b9: breaking: remove support for @vue/cli-serivce from Cypress Component Testing [ru...

Project	cypress
Branch Review	breaking/remove_vue_cli_service
Run status	Passed #58287
Run duration	16m 48s
Commit	90b43c95b9: breaking: remove support for @vue/cli-serivce from Cypress Component Testing [ru...
Committer	AtofStryker
View all properties for this run ↗︎

---

Test results
Failures	0
Flaky	0
Pending	28
Skipped	0
Passing	765
View all changes introduced in this branch ↗︎

UI Coverage  67.07%
Untested elements	25
Tested elements	55

Accessibility  96.23%
Failed rules	0 critical   4 serious   1 moderate   0 minor
Failed elements	199