Set cachetool version pr devel

roles/cli/cachetool/defaults/main.yml

@@ -1,3 +1,3 @@
 ---
 cachetool:
-  version: 8.2.2
+  version: latest # # enter three-digit version number, e.g. "7.0.0", to install a specific version

roles/cli/cachetool/tasks/main.yml

@@ -13,11 +13,22 @@
   when:
     - deploy_operation == 'deploy'
 
-- name: Download cachetool installer.
+- name: Download latest cachetool installer.
   get_url:
     url: "http://gordalina.github.io/cachetool/downloads/cachetool.phar"
     dest: "{{ cachetool_bin }}"
     mode: 0755
   when:
     - deploy_operation == 'deploy'
     - not cachetool_global.stat.exists
+    - cachetool.version == 'latest'
+
+- name: "Download cachetool version {{ cachetool.version }} installer."
+  get_url:
+    url: "http://gordalina.github.io/cachetool/downloads/cachetool-{{ cachetool.version }}.phar"
+    dest: "{{ cachetool_bin }}"
+    mode: 0755
+  when:
+    - deploy_operation == 'deploy'
+    - not cachetool_global.stat.exists
+    - cachetool.version != 'latest'