switch to compose v2.4

tasks/setup.yml

@@ -1,8 +1,4 @@
 ---
-- name: Concat lists for proxy setup
-  set_fact:
-    droneci_no_proxy: "{{ __droneci_default_no_proxy }} + {{ droneci_no_proxy | default([]) }}"
-
 - block:
     - name: Ensure service directory exists
       file:

templates/services/droneci_compose.yml.j2

@@ -1,6 +1,6 @@
 #jinja2:lstrip_blocks: True
 {{ ansible_managed | comment }}
-version: "2"
+version: "2.4"
 
 services:
   droneci:

vars/main.yml

@@ -1,4 +0,0 @@
----
-__droneci_default_no_proxy:
-  - droneserver
-  - droneagent