refactor: Bump express from 4.18.2 to 4.21.0 #2627

Job	Run time
Lint	5m 37s
Lint	5m 37s
Check Docs	5m 38s
Check Docs	5m 38s
Check Circular Dependencies	10m 16s
Check Circular Dependencies	5m 27s
build (Node 18, 18.20.4)	7m 7s
build (Node 18, 18.20.4)	7m 7s
NPM Lock File Version	5s
NPM Lock File Version	5s
build (Node 20, 20.15.1)	6m 40s
build (Node 20, 20.15.1)	6m 40s
Check Types	6m 2s
Check Types	6m 2s
build (Node 22, 22.4.1)	6m 46s
build (Node 22, 22.4.1)	6m 46s
	1h 31m 33s

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