xml update (#566)

Author: Herafia

plugin.xml

@@ -29,6 +29,11 @@
       <author>Benjamin Fontan</author>
    </authors>
    <versions>
+      <version>
+          <num>2.11.5</num>
+          <compatibility>~10.0.11</compatibility>
+          <download_url>https://github.com/pluginsGLPI/order/releases/download/2.11.5/glpi-order-2.11.5.tar.bz2</download_url>
+      </version>
       <version>
           <num>2.12.6</num>
           <compatibility>~11.0.0</compatibility>