Setting port on cypress config does not propagate to component devServers

[brian-mann]

Current behavior

When config.port is set and devServer.port is set Cypress opens it will open on the devServer.port but will not be able to proxy requests to the devServer.

Desired behavior

Cypress should open on 9999 and be able to proxy requests into the component devServer.

Test code to reproduce

// cypress.config.js
module.exports = {
  port: 9999,
  component: {
    devServer: {
       bundler: 'webpack',
       framework: '...',
       webpackConfig: {
          port: 8888
       }
    }
  }
}

### Cypress Version

12.17.4

### Node version

default

### Operating System

all

### Debug Logs

_No response_

### Other

_No response_

[jennifer-shehane]

Released in Cypress 13.0.0.