chore: update some devDependencies

package.json

@@ -411,8 +411,8 @@
     "useragent": "2.3.0"
   },
   "devDependencies": {
-    "browserify": "^14.5.0",
-    "chai": "^4.1.2",
+    "browserify": "^16.2.3",
+    "chai": "^4.2.0",
     "chai-as-promised": "^7.1.1",
     "chai-subset": "^1.2.2",
     "cucumber": "^3.1.0",
@@ -422,13 +422,13 @@
     "eslint-plugin-node": "^5.2.1",
     "eslint-plugin-promise": "^3.4.2",
     "eslint-plugin-standard": "^3.0.1",
-    "grunt": "^1.0.0",
+    "grunt": "^1.0.4",
     "grunt-auto-release": "^0.0.7",
     "grunt-browserify": "^5.0.0",
     "grunt-bump": "^0.8.0",
     "grunt-check-clean": "^0.1.2",
     "grunt-cli": "^1.1.0",
-    "grunt-contrib-watch": "^1.0.0",
+    "grunt-contrib-watch": "^1.1.0",
     "grunt-conventional-changelog": "^6.0.1",
     "grunt-conventional-github-releaser": "^1.0.0",
     "grunt-cucumberjs": "^2.0.2",
@@ -437,29 +437,29 @@
     "grunt-npm": "0.0.2",
     "http2": "^3.3.6",
     "husky": "^0.14.3",
-    "jasmine-core": "^2.3.4",
-    "karma-browserify": "^5.0.1",
+    "jasmine-core": "^3.4.0",
+    "karma-browserify": "^6.0.0",
     "karma-browserstack-launcher": "^1.0.0",
     "karma-chai": "^0.1.0",
     "karma-chrome-launcher": "^2.2.0",
     "karma-firefox-launcher": "*",
-    "karma-jasmine": "^1.0.2",
+    "karma-jasmine": "^2.0.1",
     "karma-junit-reporter": "*",
     "karma-mocha": "^1.0.1",
     "karma-mocha-reporter": "^2.0.0",
     "karma-script-launcher": "^1.0.0",
-    "load-grunt-tasks": "^3.1.0",
+    "load-grunt-tasks": "^4.0.0",
     "mkdirp": "^0.5.0",
-    "mocha": "^4.0.1",
+    "mocha": "^6.1.4",
     "mocks": "^0.0.15",
-    "proxyquire": "^1.7.11",
+    "proxyquire": "^2.1.0",
     "puppeteer": "^1.9.0",
-    "sinon": "^6.1.5",
+    "sinon": "^7.3.2",
     "sinon-chai": "^3.0.0",
-    "supertest": "^3.0.0",
+    "supertest": "^4.0.2",
     "timer-shim": "^0.3.0",
     "validate-commit-msg": "^2.11.1",
-    "which": "^1.1.1"
+    "which": "^1.3.1"
   },
   "main": "./lib/index",
   "bin": {