add default store to postprocessing

Signed-off-by: jkoberg <jkoberg@owncloud.com>

changelog/unreleased/add-default-store-to-postprocessing.md

@@ -0,0 +1,5 @@
+Bugfix: Add default store to postprocessing
+
+Postprocessing did not have a default store especially `database` and `table` are needed to talk to nats-js
+
+https://github.com/owncloud/ocis/pull/6578

services/postprocessing/pkg/config/defaults/defaultconfig.go

@@ -30,6 +30,11 @@ func DefaultConfig() *config.Config {
 				Cluster:  "ocis-cluster",
 			},
 		},
+		Store: config.Store{
+			Store:    "memory",
+			Database: "postprocessing",
+			Table:    "postprocessing",
+		},
 	}
 }