Update linting dependencies

package.json

@@ -86,20 +86,20 @@
     "coveralls": "^3.0.7",
     "dependency-check": "^4.1.0",
     "dotenv": "^8.2.0",
-    "eslint": "^6.6.0",
-    "eslint-config-standard": "^14.1.0",
-    "eslint-plugin-es": "^2.0.0",
+    "eslint": "^8.0.0",
+    "eslint-config-standard": "^17.0.0",
+    "eslint-plugin-es": "^4.0.0",
     "eslint-plugin-import": "^2.18.2",
-    "eslint-plugin-node": "^10.0.0",
-    "eslint-plugin-promise": "^4.2.1",
+    "eslint-plugin-node": "^11.0.0",
+    "eslint-plugin-promise": "^6.0.0",
     "eslint-plugin-security": "^1.4.0",
     "eslint-plugin-standard": "^4.0.1",
-    "eslint-plugin-unicorn": "^12.1.0",
+    "eslint-plugin-unicorn": "^47.0.0",
     "grunt": "^1.0.2",
     "grunt-contrib-concat": "^1.0.1",
     "grunt-contrib-uglify": "^1.0.2",
     "husky": "^3.0.9",
-    "installed-check": "^3.0.0",
+    "installed-check": "^8.0.0",
     "mocha": "^6.2.2",
     "nock": "^11.7.0",
     "npm-run-all": "^4.1.5",