Bump pyNukiBT to 0.0.18

Bumps [ronengr/pyNukiBT](https://github.com/ronengr/pyNukiBT) to 0.0.18

Author: Ronen Gruengras

custom_components/hass_nuki_bt/manifest.json

@@ -20,7 +20,7 @@
     "pyNukiBT"
   ],
   "requirements": [
-    "pyNukiBT==0.0.17"
+    "pyNukiBT==0.0.18"
   ],
   "version": "0.0.0"
 }