Bump webpack from 5.76.0 to 5.94.0 in /cirq-web/cirq_ts #15633

Job	Run time
Coverage check	9m 43s
Build protos	10s
Doc test	1m 39s
Changed files test	59s
Format check	9s
Isolated pytest Ubuntu	7m 11s
Lint check	2m 43s
Pytest MacOS (3.10)	9m 23s
Type check	1m 22s
Pytest MacOS (3.11)	7m 48s
Notebook formatting	15s
Pytest MacOS (3.12)	11m 18s
Notebook Tests against PR	10m 7s
Changed Notebooks Isolated Test against Cirq stable (partition-0)	54s
Changed Notebooks Isolated Test against Cirq stable (partition-1)	57s
Packaging test	1m 8s
Check consistency of requirements	16s
Pytest Ubuntu (3.10)	5m 31s
Changed Notebooks Isolated Test against Cirq stable (partition-2)	44s
Pytest Ubuntu (3.11)	5m 30s
Changed Notebooks Isolated Test against Cirq stable (partition-3)	46s
Pytest Ubuntu (3.12)	5m 38s
Shell check	8s
Misc check	4s
Bundle file consistency	47s
Typescript tests coverage	33s
Typescript tests	40s
Typescript lint check	30s
Pytest Windows (3.10)	7m 26s
Pytest Windows (3.11)	11m 19s
Pytest Windows (3.12)	8m 19s
	1h 53m 57s

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