Bump requirements for latest versions of PHP and Varnish roles.

Author: geerlingguy

provisioning/requirements.yml

@@ -36,7 +36,7 @@
 - src: geerlingguy.nodejs
   version: 3.0.0
 - src: geerlingguy.php
-  version: 3.0.4
+  version: 3.1.0
 - src: geerlingguy.php-memcached
   version: 2.0.0
 - src: geerlingguy.php-mysql
@@ -64,4 +64,4 @@
 - src: geerlingguy.solr
   version: 3.1.0
 - src: geerlingguy.varnish
-  version: 1.6.0
+  version: 1.6.1