Bump com.puppycrawl.tools:checkstyle from 8.2 to 10.20.1 #743

Job	Run time
build (ubuntu-latest, 11, Client, false)	54s
build (ubuntu-latest, 11, Server, false)	41s
build (ubuntu-latest, 11, Core, false)	59s
build (ubuntu-latest, 11, External, false)	1m 4s
build (ubuntu-latest, 11, Check-Updated-License-Files, false)	49s
build (ubuntu-latest, 11, Integration-Test, false)	52s
build (ubuntu-latest, 17, Client, false)	58s
build (ubuntu-latest, 17, Server, false)	45s
build (ubuntu-latest, 17, Core, false)	42s
build (ubuntu-latest, 17, External, false)	57s
build (ubuntu-latest, 17, Check-Updated-License-Files, false)	56s
build (ubuntu-latest, 17, Integration-Test, false)	51s
build (ubuntu-latest, 21, Client, false)	1m 4s
build (ubuntu-latest, 21, Server, false)	1m 2s
build (ubuntu-latest, 21, Core, false)	45s
build (ubuntu-latest, 21, External, false)	57s
build (ubuntu-latest, 21, Check-Updated-License-Files, false)	1m 13s
build (ubuntu-latest, 21, Integration-Test, false)	51s
	16m 20s

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