patch 9.0.0023: on Solaris timer_create() exists but does not work

Problem:    On Solaris timer_create() exists but does not work.
Solution:   Adjust the configure check to run the test program.
            (closes #10647)

src/version.c

@@ -735,6 +735,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    23,
 /**/
     22,
 /**/