chore(deps): update dependency emoji to v0.6.0

Author: renovate-bot

requirements.txt

@@ -11,7 +11,7 @@ uWSGI==2.0.18
 Werkzeug==0.16.1
 tweepy==3.8.0
 nltk==3.6.6
-emoji==0.5.4
+emoji==0.6.0
 pymongo==3.10.1
 textblob==0.17.1
 vaderSentiment==3.3.2