Require debhelper 13 (#413)

Co-authored-by: Stanisław <[email protected]>

Author: ryonakano

debian/compat

@@ -2,9 +2,9 @@ Source: io.elementary.monitor
 Section: utils
 Priority: extra
 Maintainer: Stanisław Dac <[email protected]>
-Build-Depends: meson,
+Build-Depends: debhelper-compat (= 13),
+               meson,
                appstream,
-               debhelper (>= 9),
                libgtk-3-dev,
                libglib2.0-dev,
                valac (>= 0.26),