Updated npm packages

package.json

@@ -21,18 +21,18 @@
     "babel-register": "^6.26.0",
     "bignumber.js": "^9.0.0",
     "bolt11": "^1.2.6",
-    "eslint": "^5.9.0",
-    "eslint-config-prettier": "^3.3.0",
+    "eslint": "^6.8.0",
+    "eslint-config-prettier": "^6.10.1",
     "eslint-plugin-prettier": "^3.1.2",
     "express": "^4.16.4",
     "express-rate-limit": "^5.0.0",
     "grpc": "^1.17.0-pre1",
-    "ioredis": "^4.2.0",
+    "ioredis": "^4.16.1",
     "jayson": "^3.1.2",
     "morgan": "^1.9.1",
-    "mustache": "^3.2.1",
+    "mustache": "^4.0.1",
     "node-uuid": "^1.4.8",
-    "prettier": "^1.19.1",
+    "prettier": "^2.0.2",
     "request": "^2.88.0",
     "request-promise": "^4.2.2",
     "winston": "^3.1.0"