version 5.60 is enough

new apis we use are already present in 5.60

Author: lnussel

Diff for: lib/OpenQA.pm

@@ -15,7 +15,7 @@
 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 package OpenQA;
-use Mojolicious 5.74;
+use Mojolicious 5.60;
 use Mojo::Base 'Mojolicious';
 use OpenQA::Utils 'connect_db';
 use OpenQA::Plugin::Helpers;