Adds new tests to verify enabling metrics for a single command. #872

Job	Run time
checkstyle	3m 50s
shellcheck	3m 10s
build	6m 19s
copyright	3m 23s
tests/tck-cdi	17m 41s
spotbugs/core	10m 34s
tests/core	11m 3s
spotbugs/integrations	7m 26s
tests/native-image-mp-1-linux	4m 59s
tests/it	15m 14s
spotbugs/others	12m 14s
tests/native-image-mp-2-linux	5m 26s
tests/tck-rest	14m 54s
tests/dbclient	9m 9s
tests/native-image-mp-3-linux	5m 23s
tests/tck-others	17m 40s
tests/dbclient-oracle	16m 48s
tests/native-image-se-1-linux	5m 28s
tests/others	13m 9s
archetypes/r1-jar	6m 57s
tests/native-image-inject-linux	5m 25s
archetypes/r2-jar	6m 52s
docs	4m 45s
tests/native-image-mp-1-macos	5m 23s
archetypes/r3-jar	5m 58s
tests/native-image-mp-2-macos	5m 21s
examples/linux	13m 33s
archetypes/r4-jar	7m 14s
tests/native-image-mp-3-macos	5m 23s
examples/macos	9m 43s
javadoc (core)	6m 53s
tests/native-image-se-1-macos	5m 19s
archetypes/r5-jar	5m 38s
javadoc (integrations)	5m 39s
tests/native-image-inject-macos	5m 18s
javadoc (others)	8m 6s
archetypes/legacy	4m 41s
tests/packaging-jar-linux	7m 19s
quickstarts/linux	12m 41s
tests/packaging-jlink-linux	9m 17s
quickstarts/macos	14m 53s
tests/packaging-jar-macos	5m 13s
tests/packaging-jlink-macos	7m 26s
tests/results	0s
gate	0s
	5h 58m 47s

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