Also install php-intl as this is now required

nickygerritsen · nickygerritsen · commit f48ea4573015 · 2019-01-27T10:27:19.000+01:00
(cherry picked from commit e5078de)
diff --git a/icpc-wf/ansible/common_tasks_prebuild.yml b/icpc-wf/ansible/common_tasks_prebuild.yml
@@ -23,6 +23,7 @@
         - php-xml
         - php-zip
         - php-mbstring
+        - php-intl
         - bsdmainutils
         - libcgroup-dev
         - libcurl4-gnutls-dev
