[terraform] bump prod identity to 0.37

Summary: deploy identity 0.37, which has been on staging for a few days now, to production

Test Plan: terraform plan

Reviewers: ashoat, will, bartek

Reviewed By: ashoat, will

Subscribers: tomek

Differential Revision: https://phab.comm.dev/D13367

services/terraform/remote/service_identity.tf

@@ -1,5 +1,5 @@
 locals {
-  identity_service_image_tag      = local.is_staging ? "0.37" : "0.35"
+  identity_service_image_tag      = local.is_staging ? "0.37" : "0.37"
   identity_service_server_image   = "commapp/identity-server:${local.identity_service_image_tag}"
   identity_service_container_name = "identity-server"