Deploy heat stacks with small flavors

PROD-36273

Change-Id: I2c00b2f74fd8f0bb180437c24abd6d75e4e09956
diff --git a/jobs/templates/heat-cicd-queens-dvr-sl.yml b/jobs/templates/heat-cicd-queens-dvr-sl.yml
index d3bb4c6..e138c6e 100644
--- a/jobs/templates/heat-cicd-queens-dvr-sl.yml
+++ b/jobs/templates/heat-cicd-queens-dvr-sl.yml
@@ -170,7 +170,7 @@
         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