4.x: Don't manage logback version. Use slf4j-bom. #7046

Job	Run time
build	6m 45s
checkstyle	3m 58s
copyright	3m 43s
shellcheck	3m 7s
docs	4m 44s
tests/tck-cdi	18m 8s
spotbugs/core	10m 58s
tests/core	11m 16s
spotbugs/integrations	7m 10s
tests/tck-rest	14m 49s
javadoc (core)	7m 27s
tests/it	14m 43s
spotbugs/others	11m 55s
tests/tck-others	17m 17s
tests/dbclient	9m 34s
javadoc (integrations)	5m 19s
tests/dbclient-oracle	16m 16s
javadoc (others)	7m 50s
tests/others	13m 4s
archetypes/r1-jar	7m 12s
tests/native-image-mp-1-linux	7m 19s
tests/native-image-mp-2-linux	12m 54s
examples/linux	13m 5s
archetypes/legacy	4m 38s
archetypes/r2-jar	7m 16s
tests/native-image-mp-3-linux	7m 7s
examples/macos	9m 11s
archetypes/r3-jar	6m 2s
tests/native-image-se-1-linux	7m 10s
archetypes/r4-jar	6m 56s
tests/native-image-inject-linux	6m 39s
archetypes/r5-jar	5m 20s
tests/packaging-jar-linux	7m 30s
quickstarts/linux	12m 22s
tests/native-image-mp-1-macos	9m 20s
tests/packaging-jlink-linux	9m 27s
quickstarts/macos	14m 2s
tests/native-image-mp-2-macos	19m 28s
tests/packaging-jar-macos	5m 20s
tests/native-image-mp-3-macos	11m 31s
tests/packaging-jlink-macos	7m 51s
tests/native-image-se-1-macos	9m 55s
tests/native-image-inject-macos	7m 13s
tests/results	11s
gate	1s
	6h 43m 3s

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