Bump webpack from 5.91.0 to 5.94.0 #568

Job	Run time
CI / Context	1s
CI / Generate matrix	27s
CI / Check governance	1s
CI / 8.1 prf-low mysql57 phpunit all	1m 25s
CI / 8.2 mariadb phpunit all	1m 22s
CI / 8.3 mysql80 phpunit all	1m 39s
CI / 8.1 mysql57 phplinting	1m 6s
CI / 8.1 mysql57 endtoend root job1	1m 51s
CI / 8.3 mysql80 endtoend root job1	2m 13s
CI / 8.1 mysql57 endtoend root job2	2m 51s
CI / 8.3 mysql80 endtoend root job2	2m 15s
CI / 8.1 mysql57 js	1m 3s
CI / Dispatch tag patch release	0s
	16m 14s

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