Test showing build stats

I can't push to JuliaCI#224 so just testing if my fix works properly.

Author: Zentrik

utilities/build_julia.sh

@@ -66,6 +66,9 @@ echo "--- Quick consistency checks"
 ${JULIA_EXE} -e "import Test; Test.@test Sys.ARCH == :${ARCH:?}"
 ${JULIA_EXE} -e "import Test; Test.@test Sys.WORD_SIZE == ${EXPECTED_WORD_SIZE:?}"
 
+echo "--- Show build stats"
+${MAKE} "${MFLAGS[@]}" build-stats
+
 echo "--- Create build artifacts"
 ${MAKE} "${MFLAGS[@]}" binary-dist