Merge pull request #851 from komamitsu/dependabot/gradle/org.junit.ju… #961

Job	Run time
prepare_for_integration_test	1m 11s
build (8)	8m 41s
integration_ext_test (16)	1m 58s
build (11)	8m 46s
build_ext (16)	1m 31s
integration_ext_test (17)	1m 59s
build_ext (17)	1m 24s
integration_test (8)	51s
integration_test (11)	53s
integration_test (17)	54s
	28m 8s

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