Enable Ceph Nautilus for nightly deployment

Related-Prod:PROD-34687
Change-Id: I8be8ae7ccfd32fd7e2c87a6023a1ddad22efeacf
diff --git a/tcp_tests/templates/heat-cicd-pike-dvr-sl/salt-context-cookiecutter.yaml b/tcp_tests/templates/heat-cicd-pike-dvr-sl/salt-context-cookiecutter.yaml
index 90e74b6..6edeaeb 100644
--- a/tcp_tests/templates/heat-cicd-pike-dvr-sl/salt-context-cookiecutter.yaml
+++ b/tcp_tests/templates/heat-cicd-pike-dvr-sl/salt-context-cookiecutter.yaml
@@ -70,7 +70,8 @@
   ceph_rgw_node02_hostname: rgw02
   ceph_rgw_node03_address: 10.167.4.78
   ceph_rgw_node03_hostname: rgw03
-  ceph_version: luminous
+  ceph_version: nautilus
+  ceph_osd_block_partition_prefix: ''
   cicd_control_node01_address: 10.167.4.91
   cicd_control_node01_hostname: cid01
   cicd_control_node02_address: 10.167.4.92