ci: use the latest tag for datalayers

.ci/docker-compose-file/.env

@@ -12,7 +12,7 @@ OPENTS_TAG=9aa7f88
 KINESIS_TAG=2.1
 HSTREAMDB_TAG=v0.19.3
 HSTREAMDB_ZK_TAG=3.8.1
-DATALAYERS_TAG=nightly
+DATALAYERS_TAG=v2.1.7
 
 MS_IMAGE_ADDR=mcr.microsoft.com/mssql/server
 SQLSERVER_TAG=2019-CU19-ubuntu-20.04