Bump webpack from 5.91.0 to 5.94.0 #612

Job	Run time
ci / Context	1s
ci / Generate matrix	15s
ci / Check governance	1s
ci / 8.1 prf-low mysql57 phpunit all	4m 49s
ci / 8.2 mariadb phpunit all	1m 31s
ci / 8.3 mysql80 phpunit all	1m 25s
ci / 8.1 mysql57 phplinting	1m 25s
ci / 8.1 mysql57 endtoend root job1	2m 6s
ci / 8.3 mysql80 endtoend root job1	2m 9s
ci / 8.1 mysql57 endtoend root job2	1m 42s
ci / 8.3 mysql80 endtoend root job2	2m 24s
ci / 8.1 mysql57 js	1m 15s
ci / 8.1 mysql57 doclinting	1m 37s
ci / Dispatch tag patch release	0s
	20m 40s

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