Deploy heat stacks with small flavors

PROD-36273

Change-Id: I2c00b2f74fd8f0bb180437c24abd6d75e4e09956
diff --git a/jobs/templates/heat-bm-cicd-pike-contrail-sl.yml b/jobs/templates/heat-bm-cicd-pike-contrail-sl.yml
index 3d9c175..ba5b6da 100644
--- a/jobs/templates/heat-bm-cicd-pike-contrail-sl.yml
+++ b/jobs/templates/heat-bm-cicd-pike-contrail-sl.yml
@@ -166,7 +166,7 @@
         name: OS_CREDENTIALS
         trim: 'false'
     - string:
-        default: eu-cloud.env
+        default: eu-cloud-low-flavors.env
         description: |-
           Heat template environment filename with 'parameter_defaults' dict, placed in tcp_tests/templates/_heat_environments/
           , for example: microcloud-8116.env