Update dependency to recent version of Mojo

Change-Id: Ifddf658be80fe5da61211422a306c53ec77593b7
diff --git a/Makefile.PL b/Makefile.PL
index 56f1696..40de23c 100644
--- a/Makefile.PL
+++ b/Makefile.PL
@@ -16,7 +16,7 @@
   },
   LICENSE      => 'freebsd',
   PREREQ_PM => {
-    'Mojolicious' => '8.42',
+    'Mojolicious' => '9.19',
     'Mojolicious::Plugin::TagHelpers::Pagination' => 0.08,
     'Mojolicious::Plugin::TagHelpers::MailToChiffre' => 0.13,
     'Mojolicious::Plugin::ClosedRedirect' => 0.15,