patch 9.0.1548: CI: check in sound-dummy module may throw an error

Problem:    CI: check in sound-dummy module may throw an error.
Solution:   Check whether apt-cache can show the package description.
            (Christian Brabandt, closes #12390)

src/version.c

@@ -695,6 +695,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1548,
 /**/
     1547,
 /**/