Update colinmollenhour/cache-backend-redis from version 1.10.5 to 1.10.6

See colinmollenhour/Cm_Cache_Backend_Redis#134 for details on updates to library

Author: davidalger

composer.json

@@ -31,7 +31,7 @@
         "lib-libxml": "*",
         "braintree/braintree_php": "3.35.0",
         "colinmollenhour/cache-backend-file": "~1.4.1",
-        "colinmollenhour/cache-backend-redis": "1.10.5",
+        "colinmollenhour/cache-backend-redis": "1.10.6",
         "colinmollenhour/credis": "1.10.0",
         "colinmollenhour/php-redis-session-abstract": "~1.4.0",
         "composer/composer": "^1.6",