CLDR-19296 Open common/main/*.xml files as UTF-8 (#5446) #18051

Job	Run time
Package up CLDR	12m 38s
check	6m 40s
Formatter + Style checker	53s
build	24m 35s
Docker test cldr-apps	6m 25s
Deploy to cldr-smoke for testing	6m 22s
	57m 33s

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