Fix typo in helm plugins path

Issue-ID: OOM-1638

Change-Id: I00607f4861d153dc73f9ce516d9bd3b9c490a9cc
Signed-off-by: Milan Verespej <m.verespej@partner.samsung.com>
diff --git a/ansible/roles/application-install/tasks/pre-install.yml b/ansible/roles/application-install/tasks/pre-install.yml
index f87ade3..bf6619b 100644
--- a/ansible/roles/application-install/tasks/pre-install.yml
+++ b/ansible/roles/application-install/tasks/pre-install.yml
@@ -37,7 +37,7 @@
     - name: Install all helm plugins from {{ app_helm_plugins_directory }} dir
       copy:
         src: "{{ item.path }}"
-        dest: "{{ helm_home_dir.stdout }}"/plugins"
+        dest: "{{ helm_home_dir.stdout }}/plugins"
         directory_mode: yes
         mode: 0755
       with_items: "{{ list_of_plugins.files }}"