Bump org.codehaus.groovy:groovy from 2.4.16 to 2.4.21 #7005

Job	Run time
shellcheck	3m 12s
build	6m 47s
checkstyle	3m 52s
copyright	3m 36s
javadoc (core)	6m 54s
tests/core	11m 17s
javadoc (integrations)	5m 22s
tests/it	14m 47s
tests/tck-cdi	17m 57s
javadoc (others)	7m 45s
tests/dbclient	9m 11s
spotbugs/core	10m 35s
tests/tck-rest	14m 35s
tests/dbclient-oracle	16m 18s
tests/tck-others	16m 43s
spotbugs/integrations	7m 22s
tests/others	12m 58s
archetypes/r1-jar	6m 58s
archetypes/r2-jar	6m 50s
docs	4m 44s
spotbugs/others	12m 50s
examples/linux	12m 58s
archetypes/r3-jar	6m 21s
archetypes/r4-jar	7m 3s
examples/macos	9m 21s
archetypes/legacy	4m 41s
archetypes/r5-jar	5m 32s
quickstarts/linux	11m 47s
quickstarts/macos	10m 38s
tests/packaging-jar-linux	7m 27s
tests/native-image-mp-1-linux	6m 50s
tests/packaging-jlink-linux	8m 57s
tests/native-image-mp-2-linux	11m 19s
tests/native-image-mp-3-linux	6m 50s
tests/packaging-jar-macos	5m 1s
tests/native-image-se-1-linux	6m 44s
tests/packaging-jlink-macos	6m 52s
tests/native-image-inject-linux	6m 45s
tests/native-image-mp-1-macos	8m 39s
tests/native-image-mp-2-macos	17m 48s
tests/native-image-mp-3-macos	7m 29s
tests/native-image-se-1-macos	6m 36s
tests/native-image-inject-macos	6m 19s
tests/results	14s
gate	1s
	6h 22m 45s

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