Merge pull request #5513 from matrix-org/erikj/fix_messages_token

Author: anoadragon453

changelog.d/5513.feature

@@ -0,0 +1 @@
+Add support for handling pagination APIs on client reader worker.

synapse/app/client_reader.py

@@ -37,6 +37,7 @@
 from synapse.replication.slave.storage.devices import SlavedDeviceStore
 from synapse.replication.slave.storage.directory import DirectoryStore
 from synapse.replication.slave.storage.events import SlavedEventStore
+from synapse.replication.slave.storage.groups import SlavedGroupServerStore
 from synapse.replication.slave.storage.keys import SlavedKeyStore
 from synapse.replication.slave.storage.profile import SlavedProfileStore
 from synapse.replication.slave.storage.push_rule import SlavedPushRuleStore
@@ -75,6 +76,7 @@ class ClientReaderSlavedStore(
     SlavedDeviceStore,
     SlavedReceiptsStore,
     SlavedPushRuleStore,
+    SlavedGroupServerStore,
     SlavedAccountDataStore,
     SlavedEventStore,
     SlavedKeyStore,