wscript: print CI group tag on CI #729

Job	Run time
build (base)	6m 42s
build (clang)	8m 55s
build-gcc-heli	6m 34s
autotest-heli (sitltest-heli)	10m 1s
autotest (sitltest-copter-tests1a)	7m 11s
autotest (sitltest-copter-tests1b)	9m 21s
autotest (sitltest-copter-tests1c)	11m 20s
autotest (sitltest-copter-tests1d)	9m 5s
autotest (sitltest-copter-tests1e)	9m 4s
autotest (sitltest-copter-tests2a)	9m 2s
autotest (sitltest-copter-tests2b)	29m 58s
	1h 57m 13s

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