Fixing deprecation warning in ci-installer

Issue-ID: OOM-2128

Change-Id: I5b25007b0521596083f539be296291adc21bb1d8
Signed-off-by: Tomáš Levora <t.levora@partner.samsung.com>
diff --git a/tools/cicdansible/roles/install/tasks/install.yml b/tools/cicdansible/roles/install/tasks/install.yml
index 35df797..141ea7a 100644
--- a/tools/cicdansible/roles/install/tasks/install.yml
+++ b/tools/cicdansible/roles/install/tasks/install.yml
@@ -45,4 +45,4 @@
   args:
     chdir: "{{ installer_deploy_path }}/ansible"
   async: "{{ install_timeout }}"
-  when: install_app
+  when: install_app | bool