chore: update to jest 27

Updates jest, ts-jest and babel-jest to v27.
vue-jest v5 does not support jest v27,
so a new vue3-jest package has been introduced (see vuejs/vue-jest#343),
with a version number aligned on the jest version (as ts-jest and babel-jest do).

This commits replaces vue-jest by vue3-jest, and updates the jest config to use this new trasnformer.
This will be the default Vue CLI setup in the future.

jest.config.js

@@ -12,7 +12,7 @@ module.exports = {
   },
   testEnvironment: 'jsdom',
   transform: {
-    '^.+\\.vue$': 'vue-jest',
+    '^.+\\.vue$': 'vue3-jest',
     '^.+\\js$': 'babel-jest'
   },
   moduleFileExtensions: ['vue', 'js', 'json', 'jsx', 'ts', 'tsx', 'node'],

package.json

@@ -26,10 +26,10 @@
     "@vue/compat": "3.2.4",
     "@vue/compiler-dom": "3.2.6",
     "@vue/compiler-sfc": "3.2.6",
-    "babel-jest": "^26.6.3",
-    "babel-preset-jest": "^27.0.6",
+    "babel-jest": "27.1.0",
+    "babel-preset-jest": "27.0.6",
     "husky": "^7.0.1",
-    "jest": "25.5.4",
+    "jest": "27.1.0",
     "jsdom": "^17.0.0",
     "jsdom-global": "^3.0.2",
     "lint-staged": "^11.1.2",
@@ -38,13 +38,13 @@
     "reflect-metadata": "^0.1.13",
     "rollup": "^2.56.3",
     "rollup-plugin-typescript2": "^0.30.0",
-    "ts-jest": "25.3.1",
+    "ts-jest": "27.0.5",
     "tslib": "^2.3.1",
     "typescript": "^4.3.5",
     "vitepress": "^0.16.1",
     "vue": "3.2.6",
     "vue-class-component": "^8.0.0-rc.1",
-    "vue-jest": "^5.0.0-alpha.10",
+    "vue3-jest": "27.0.0-alpha.2",
     "vue-router": "^4.0.11",
     "vue-tsc": "0.3.0",
     "vuex": "^4.0.2"