limit nodejs deps to odoo<12.0 and ubuntu<18.04

tasks/main.yml

@@ -79,22 +79,24 @@
       - nodejs
       - npm
     state: present
+  when: odoo_role_odoo_version < "12.0"
 
 - name: Install Less CSS via nodejs
   become: yes
   npm:
     name: less
     version: 2.7.2
     global: yes
+  when: odoo_role_odoo_version < "12.0"
 
-# This link is needed in Ubuntu 16.04 and in Ubuntu 18.04 raise and error.
+# This link is needed in Ubuntu 16.04 and in Ubuntu 18.04 raise an error.
 - name: Create node symlink
   become: yes
   file:
     src: /usr/bin/nodejs
     dest: /usr/bin/node
     state: link
-  when: ansible_distribution == "Ubuntu" and not ansible_distribution_version >= "18.04"
+  when: odoo_role_odoo_version < "12.0" and ansible_distribution == "Ubuntu" and not ansible_distribution_version >= "18.04"
 
 - name: Install Odoo
   become: yes