Proxito: cacheops right model (#10111)

I got confused because we are mapping a different table name.
`subscriptions.models.PlanFeature` maps to `organizations_planfeature` table.

Author: humitos

readthedocs/settings/base.py

@@ -1061,7 +1061,9 @@ def DOCKER_LIMITS(self):
             'ops': CACHEOPS_OPS,
             'timeout': CACHEOPS_TIMEOUT,
         },
-        'organizations.planfeature': {
+
+        # readthedocs.subscriptions.*
+        'subscriptions.planfeature': {
             'ops': CACHEOPS_OPS,
             'timeout': CACHEOPS_TIMEOUT,
         },