Excluded the redis connection from coverage check

inventory_provider/db.py

@@ -3,7 +3,7 @@ import redis
 from flask import current_app, g
 
 
-def get_redis():
+def get_redis():  # pragma: no cover
     if 'redis_db' not in g:
         config = current_app.config['INVENTORY_PROVIDER_CONFIG']
         g.redis_db = redis.Redis(