Build(deps-dev): Bump express from 4.18.2 to 4.21.1 #2186

Job	Run time
pre-commit	12s
tests (ubuntu-latest, 3.10, ~=6.0)	1m 4s
Build and Audit Documentation	1m 46s
tests (ubuntu-latest, 3.10, ~=7.0)	1m 7s
tests (ubuntu-latest, 3.10, ~=8.0)	1m 6s
tests (ubuntu-latest, 3.11, ~=6.0)	1m 2s
tests (ubuntu-latest, 3.11, ~=7.0)	1m 4s
tests (ubuntu-latest, 3.11, ~=8.0)	1m 2s
tests (ubuntu-latest, 3.12.*, ~=6.0)	1m 22s
tests (ubuntu-latest, 3.12.*, ~=7.0)	1m 27s
tests (ubuntu-latest, 3.12.*, ~=8.0)	1m 19s
tests (ubuntu-latest, 3.13, ~=6.0)	1m 23s
tests (ubuntu-latest, 3.13, ~=7.0)	1m 23s
tests (ubuntu-latest, 3.13, ~=8.0)	1m 23s
tests (windows-latest, 3.11, true)	2m 0s
tests (macos-latest, 3.x)	59s
tests (ubuntu-latest, 3.9, ~=7.0)	1m 6s
tests (ubuntu-latest, 3.9, ~=6.0)	1m 14s
	21m 59s

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