downgrade devDependencies

Author: delabiejochen

package.json

@@ -13,21 +13,21 @@
     "url": "git://github.com/testingbot/testingbot-api.git"
   },
   "bugs": {
-    "url" : "https://github.com/testingbot/testingbot-api/issues"
+    "url": "https://github.com/testingbot/testingbot-api/issues"
   },
   "keywords": [
     "testingbot-api",
     "testingbot-nodejs",
     "nodejs api"
   ],
   "devDependencies": {
-    "eslint": "^7.25.0",
-    "eslint-config-airbnb-base": "^14.2.1",
-    "eslint-config-standard": "^16.0.2",
-    "eslint-plugin-import": "^2.22.1",
-    "eslint-plugin-promise": "^5.1.0",
-    "eslint-plugin-standard": "^5.0.0",
-    "mocha": "^8.3.2"
+    "eslint": "^5.12.1",
+    "eslint-config-airbnb-base": "^13.1.0",
+    "eslint-config-standard": "^12.0.0",
+    "eslint-plugin-import": "^2.16.0",
+    "eslint-plugin-promise": "^4.0.1",
+    "eslint-plugin-standard": "^4.0.0",
+    "mocha": "^5.2.0"
   },
   "engines": {
     "node": "*"