test: disable babel build for tests and simplify jest config (conventional-changelog#969)

Author: armano2

@commitlint/cli/package.json

@@ -20,6 +20,9 @@
   "babel": {
     "presets": [
       "babel-preset-commitlint"
+    ],
+    "ignore": [
+      "**/*.test.js"
     ]
   },
   "engines": {

@commitlint/prompt/package.json

@@ -17,6 +17,9 @@
   "babel": {
     "presets": [
       "commitlint"
+    ],
+    "ignore": [
+      "**/*.test.js"
     ]
   },
   "config": {

@commitlint/read/package.json

@@ -14,6 +14,9 @@
   "babel": {
     "presets": [
       "babel-preset-commitlint"
+    ],
+    "ignore": [
+      "**/*.test.js"
     ]
   },
   "engines": {

@commitlint/travis-cli/package.json

@@ -18,6 +18,9 @@
   "babel": {
     "presets": [
       "babel-preset-commitlint"
+    ],
+    "ignore": [
+      "**/*.test.js"
     ]
   },
   "engines": {

jest.config.js

@@ -2,10 +2,5 @@ module.exports = {
 	preset: 'ts-jest/presets/js-with-babel',
 	testEnvironment: '@commitlint/test-environment',
 	testRegex: undefined,
-	testMatch: [
-		'**/*.test.ts?(x)',
-		'**/@commitlint/{lint,read,travis-cli,cli,load,prompt}/src/**/*.test.js?(x)',
-		'**/@commitlint/{prompt-cli,config-lerna-scopes}/*.test.js?(x)',
-		'**/@alias/commitlint/*.test.js?(x)'
-	]
+	testMatch: ['**/*.test.[jt]s?(x)']
 };