chore(package): update loglevel to version 1.6.8

Closes #22

Author: greenkeeper[bot]

package.json

@@ -48,7 +48,7 @@
     "eslint-config-fullcube": "2.0.2",
     "faker": "4.1.0",
     "helmet": "3.6.1",
-    "loglevel": "1.4.1",
+    "loglevel": "1.6.8",
     "loopback": "3.8.0",
     "loopback-boot": "2.24.0",
     "loopback-component-explorer": "4.2.0",