chore: update dependencies

package.json

@@ -42,25 +42,26 @@
     "eslint": "^6.0.0",
     "eslint-plugin-mocha": "^6.0.0",
     "husky": "^4.0.2",
-    "karma": "^4.3.0",
+    "karma": "^5.0.3",
     "karma-chrome-launcher": "^3.0.0",
     "karma-coverage": "^2.0.0",
-    "karma-mocha": "^1.0.0",
+    "karma-mocha": "^2.0.1",
     "karma-mocha-reporter": "^2.2.5",
     "karma-rollup-preprocessor": "^7.0.2",
-    "karma-sauce-launcher": "^2.0.0",
+    "karma-sauce-launcher": "^4.1.4",
     "karma-sinon": "^1.0.0",
     "karma-sourcemap-loader": "^0.3.7",
     "mocha": "^7.0.1",
     "nps": "^5.9.8",
     "page": "^1.11.4",
     "remove-lockfiles": "^2.0.0",
-    "rollup": "^1.20.3",
+    "rollup": "^2.7.5",
     "rollup-plugin-babel": "^4.3.3",
     "rollup-plugin-commonjs": "^10.1.0",
     "rollup-plugin-copy-assets-to": "^1.0.0",
     "rollup-plugin-glob-import": "^0.4.5",
     "rollup-plugin-istanbul": "^2.0.1",
+    "rollup-plugin-node-builtins": "^2.1.2",
     "rollup-plugin-node-resolve": "^5.2.0",
     "rollup-plugin-serve": "^1.0.1",
     "rollup-plugin-terser": "^5.0.0",

rollup.common.config.js

@@ -5,6 +5,7 @@ const babel = require('rollup-plugin-babel');
 const deindent = require('deindent');
 const { terser } = require('rollup-plugin-terser');
 const istanbul = require('rollup-plugin-istanbul');
+const builtins = require('rollup-plugin-node-builtins');
 
 const { name, contributors, version } = require('./package.json');
 
@@ -39,7 +40,12 @@ module.exports = function(config) {
         include: ['src/**/*.js']
       }),
 
-      resolve(),
+      tests && builtins(),
+
+      resolve({
+        preferBuiltins: true
+      }),
+
       commonjs(),
       glob(),