fix: update get-port dependency

Author: nodkz

package.json

@@ -25,33 +25,33 @@
   "homepage": "https://github.com/nodkz/mongodb-memory-server",
   "devDependencies": {
     "babel-cli": "^6.26.0",
-    "babel-eslint": "^8.2.3",
-    "babel-jest": "^23.0.1",
+    "babel-eslint": "^8.2.6",
+    "babel-jest": "^23.4.2",
     "babel-plugin-transform-class-properties": "^6.24.1",
     "babel-plugin-transform-flow-strip-types": "^6.22.0",
     "babel-plugin-transform-object-rest-spread": "^6.26.0",
     "babel-plugin-transform-runtime": "^6.23.0",
     "babel-preset-env": "^1.7.0",
     "cz-conventional-changelog": "^2.1.0",
-    "eslint": "^5.0.1",
+    "eslint": "^5.2.0",
     "eslint-config-airbnb-base": "^13.0.0",
     "eslint-config-prettier": "^2.9.0",
-    "eslint-plugin-flowtype": "^2.49.3",
+    "eslint-plugin-flowtype": "^2.50.0",
     "eslint-plugin-import": "^2.12.0",
-    "eslint-plugin-prettier": "^2.6.0",
-    "flow-bin": "^0.75.0",
-    "jest": "^23.1.0",
-    "mongodb": "3.1.0",
+    "eslint-plugin-prettier": "^2.6.2",
+    "flow-bin": "^0.77.0",
+    "jest": "^23.4.2",
+    "mongodb": "3.1.1",
     "npm-run-all": "^4.1.3",
-    "prettier": "^1.13.5",
+    "prettier": "^1.14.0",
     "rimraf": "^2.6.2",
-    "semantic-release": "^15.5.2"
+    "semantic-release": "^15.9.3"
   },
   "dependencies": {
     "babel-runtime": "^6.26.0",
     "debug": "^3.1.0",
     "decompress": "^4.2.0",
-    "get-port": "^3.2.0",
+    "get-port": "^4.0.0",
     "getos": "^3.1.0",
     "https-proxy-agent": "^2.2.1",
     "lockfile": "^1.0.4",