Exclude Jest configs by default

[ybiquitous]

What is the problem you're trying to solve?

Like stylelint/create-stylelint#1, when we'd like to use Vitest instead of Jest, including the following Jest configs by default is not helpful because a Jest rule requires installing the Jest package:

eslint-config-stylelint/.eslintrc.js

Lines 16 to 17 in 43802c0

	"plugin:jest/recommended",
	"plugin:jest/style",

See https://github.com/stylelint/stylelint-create/pull/1/files#r1088492886

What solution would you like to see?

I suggest adding one more config for Jest:

Default:

{
  "extends": ["stylelint"]
}

For Jest:

{
  "extends": ["stylelint/jest"]
}

This change should be a major release because of a breaking change.

[jeddy3]

SGTM.