Set timeout to 1800 seconds for pre-installer

wmde-odoo/manifests/init.pp

@@ -129,13 +129,13 @@ inherits odoo::params {
 	}
 
 
-
 	exec {"install_pre":
 		command => "/bin/ls > /dev/null && $preenv && $pip_cmd install -r $odoo_systemdir/requirements.txt",
 		require => [
 			Vcsrepo["$odoo_systemdir"],
 			Package[$prepkg],
-		]
+		],
+		timeout     => 1800,
 	}
 }