Bump webpack from 5.76.1 to 5.97.1 in /site #11872

Job	Run time
site	7m 39s
build-ubicloud-standard-8-jdk-21-snapshot-blockhound	24m 48s
lint	10m 28s
build-macos-latest-jdk-21	55m 5s
build-windows-latest-jdk-21	1h 1m 3s
build-ubicloud-standard-8-jdk-8	15m 48s
flaky-tests	11m 56s
build-ubicloud-standard-8-jdk-11	17m 21s
build-ubicloud-standard-8-jdk-17-leak	20m 2s
build-ubicloud-standard-8-jdk-17-min-java-11	19m 7s
build-ubicloud-standard-8-jdk-17-min-java-17-coverage	24m 1s
	4h 27m 18s

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