chore: bump dependencies

package.json

@@ -1,6 +1,6 @@
 {
   "name": "safer-eval",
-  "version": "1.3.3",
+  "version": "1.3.4-0",
   "description": "a safer eval",
   "keywords": [
     "eval",
@@ -37,32 +37,32 @@
     "clones": "^1.2.0"
   },
   "devDependencies": {
-    "@babel/cli": "^7.4.4",
-    "@babel/core": "^7.4.4",
-    "@babel/preset-env": "^7.4.4",
+    "@babel/cli": "^7.5.0",
+    "@babel/core": "^7.5.4",
+    "@babel/preset-env": "^7.5.4",
     "babel-loader": "^8.0.6",
-    "eslint": "^5.16.0",
-    "eslint-config-standard": "^12.0.0",
-    "eslint-plugin-import": "^2.17.2",
-    "eslint-plugin-node": "^9.0.1",
-    "eslint-plugin-promise": "^4.1.1",
+    "eslint": "^6.0.1",
+    "eslint-config-standard": "^13.0.1",
+    "eslint-plugin-import": "^2.18.0",
+    "eslint-plugin-node": "^9.1.0",
+    "eslint-plugin-promise": "^4.2.1",
     "eslint-plugin-standard": "^4.0.0",
-    "karma": "^4.1.0",
-    "karma-chrome-launcher": "^2.2.0",
+    "karma": "^4.2.0",
+    "karma-chrome-launcher": "^3.0.0",
     "karma-firefox-launcher": "^1.1.0",
     "karma-mocha": "^1.3.0",
     "karma-sourcemap-loader": "^0.3.7",
     "karma-spec-reporter": "~0.0.32",
-    "karma-webpack": "^3.0.5",
+    "karma-webpack": "^4.0.2",
     "mocha": "^6.1.4",
     "nyc": "^14.1.1",
     "rimraf": "^2.6.3",
-    "webpack": "^4.31.0"
-  },
-  "_devDependencies": {
-    "zuul": "^3.11.1"
+    "webpack": "^4.35.3"
   },
   "engines": {
     "node": ">=6.0.0"
+  },
+  "optionalDevDependencies": {
+    "zuul": "^3.11.1"
   }
 }