Handle /timestamp_to_event via Synapse workers

Related to 8f10c8b054

roles/custom/matrix-synapse/vars/main.yml

@@ -134,6 +134,7 @@ matrix_synapse_workers_generic_worker_endpoints:
   - ^/_matrix/federation/(v1|v2)/send_leave/
   - ^/_matrix/federation/(v1|v2)/invite/
   - ^/_matrix/federation/v1/event_auth/
+  - ^/_matrix/federation/v1/timestamp_to_event/
   - ^/_matrix/federation/v1/exchange_third_party_invite/
   - ^/_matrix/federation/v1/user/devices/
   - ^/_matrix/key/v2/query
@@ -161,6 +162,7 @@ matrix_synapse_workers_generic_worker_endpoints:
   - ^/_matrix/client/(api/v1|r0|v3|unstable)/voip/turnServer$
   - ^/_matrix/client/(api/v1|r0|v3|unstable)/rooms/.*/event/
   - ^/_matrix/client/(api/v1|r0|v3|unstable)/joined_rooms$
+  - ^/_matrix/client/v1/rooms/.*/timestamp_to_event$
   - ^/_matrix/client/(api/v1|r0|v3|unstable)/search$
 
   # Encryption requests