Makefile.am: arrange in alphabet order and add cherenkov_plot_rankingstat

gstlal-burst/bin/Makefile.am

 dist_bin_SCRIPTS = \
 	gstlal_cherenkov_burst \
 	gstlal_cherenkov_inj \
-	gstlal_impulse_inj \
+	gstlal_cherenkov_plot_rankingstat \
 	gstlal_cs_triggergen \
+	gstlal_impulse_inj \
 	gstlal_snax_aggregate \
 	gstlal_snax_bank_overlap \
 	gstlal_snax_combine \
-	gstlal_snax_dag_online \
 	gstlal_snax_dag_offline \
+	gstlal_snax_dag_online \
 	gstlal_snax_extract \
 	gstlal_snax_generate \
 	gstlal_snax_monitor \