Bump org.eclipse.jgit:org.eclipse.jgit from 6.7.0.202309050840-r to 6.8.0.202311291450-r #632

Job	Run time
build	9m 20s
integration-test (gradle-versions=6.2,6.3,6.4)	23m 10s
integration-test (gradle-versions=6.5,6.6,6.7)	22m 52s
integration-test (gradle-versions=6.8,6.9,7.0)	23m 42s
integration-test (gradle-versions=7.1,7.2,7.3)	23m 20s
integration-test (gradle-versions=7.4,7.5,7.6)	23m 59s
	2h 6m 23s

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