Remove explicit dependency installation of `@vue/compiler-sfc`

Hello,

I'm not sure if this is even an "issue", but a little code improvement. Currently, I'm on a project using Vue 3 with Vue3-jest:

Some lines of the package.json:

  "devDependencies": {
    "@babel/core": "7.16.0",
    "@babel/preset-env": "7.16.0",
    "@vue/compiler-sfc": "3.2.22",
    "@vue/test-utils": "2.0.0-rc.16",
    "@vue/vue3-jest": "27.0.0-alpha.3",
    "babel-jest": "27.3.1",
    "jest": "27.3.1",
  },
  "dependencies": {
    "@jest/globals": "27.3.1",
    "vue": "3.2.22",
    "vue-loader": "16.8.3",
  }

I stumbled upon following change with those lines of text:

Note: as of 3.2.13+, this package is included as a dependency of the main vue package and can be accessed as vue/compiler-sfc. This means you no longer need to explicitly install this package and ensure its version match that of vue's. Just use the main vue/compiler-sfc deep import instead.

As far as I can tell, it is no longer necessary to specify the dependency "@vue/compiler-sfc": "3.2.22", in the package.json. So I removed it. However, our tests arent working anymore, jest is throwing following error message:

> jest --coverage

Error: Cannot find module '@vue/compiler-sfc'
Require stack:
- /home/node_modules/@vue/vue3-jest/lib/process.js
- /home/node_modules/@vue/vue3-jest/lib/index.js
- /home/node_modules/jest-util/build/requireOrImportModule.js
- /home/node_modules/jest-util/build/index.js
- /home/node_modules/jest-config/build/getCacheDirectory.js
- /home/node_modules/jest-config/build/Defaults.js
- /home/node_modules/jest-config/build/normalize.js
- /home/node_modules/jest-config/build/index.js
- /home/node_modules/jest/node_modules/jest-cli/build/init/index.js
- /home/node_modules/jest/node_modules/jest-cli/build/cli/index.js
- /home/node_modules/jest/node_modules/jest-cli/bin/jest.js
- /home/node_modules/jest/bin/jest.js
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:880:15)
    at Function.Module._load (internal/modules/cjs/loader.js:725:27)
    at Module.require (internal/modules/cjs/loader.js:952:19)
    at require (internal/modules/cjs/helpers.js:88:18)
    at Object.<anonymous> (/home/node_modules/@vue/vue3-jest/lib/process.js:1:51)
    at Module._compile (internal/modules/cjs/loader.js:1063:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)
    at Module.load (internal/modules/cjs/loader.js:928:32)
    at Function.Module._load (internal/modules/cjs/loader.js:769:14)
    at Module.require (internal/modules/cjs/loader.js:952:19)

I did not expect that, vue-jest should be not affected if I'm deleting this dependency. However, vue-jest is still depending on @vue/compiler-sfc as a dependency (see package.json of vue-jest). Is it possible to delete this separate dependency and use deep import of @vue/compiler-sfc instead?

vuejs / vue-jest

Remove explicit dependency installation of `@vue/compiler-sfc` #409