chore(deps): update dependency webpack to v5 [security] #3339

Job	Run time
lint	28s
build	9m 14s
lib-tests (14.x, showcase)	2m 8s
lib-tests-esm (14.x, showcase)	2m 53s
lib-tests (14.x, kms)	1m 47s
lib-tests-esm (14.x, kms)	2m 33s
lib-tests (14.x, translate)	1m 37s
lib-tests-esm (14.x, translate)	2m 22s
lib-tests (14.x, monitoring)	2m 29s
lib-tests-esm (14.x, monitoring)	3m 22s
lib-tests (14.x, dlp)	2m 22s
lib-tests-esm (14.x, dlp)	3m 2s
lib-tests (14.x, texttospeech)	1m 23s
lib-tests-esm (14.x, texttospeech)	2m 11s
lib-tests (14.x, showcase-legacy)	1m 21s
lib-tests-esm (14.x, showcase-legacy)	2m 15s
lib-tests (14.x, compute)	1m 34s
lib-tests-esm (14.x, compute)	2m 14s
lib-tests (14.x, logging)	2m 19s
lib-tests-esm (14.x, logging)	3m 1s
	50m 35s

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