Bump org.apache.hbase:hbase-client from 2.5.6-hadoop3 to 2.6.1-hadoop3 #703

Job	Run time
build (ubuntu-latest, 11, Client, false)	10m 17s
build (ubuntu-latest, 11, Server, false)	22m 6s
build (ubuntu-latest, 11, Core, false)	14m 12s
build (ubuntu-latest, 11, External, false)	15m 48s
build (ubuntu-latest, 11, Check-Updated-License-Files, false)	8m 23s
build (ubuntu-latest, 11, Integration-Test, false)	9m 45s
build (ubuntu-latest, 17, Client, false)	39m 43s
build (ubuntu-latest, 17, Server, false)	19m 48s
build (ubuntu-latest, 17, Core, false)	13m 19s
build (ubuntu-latest, 17, External, false)	15m 30s
build (ubuntu-latest, 17, Check-Updated-License-Files, false)	8m 25s
build (ubuntu-latest, 17, Integration-Test, false)	8m 58s
build (ubuntu-latest, 21, Client, false)	10m 26s
build (ubuntu-latest, 21, Server, false)	21m 28s
build (ubuntu-latest, 21, Core, false)	14m 4s
build (ubuntu-latest, 21, External, false)	13m 55s
build (ubuntu-latest, 21, Check-Updated-License-Files, false)	39m 41s
build (ubuntu-latest, 21, Integration-Test, false)	9m 6s
	4h 54m 54s

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