build(deps): bump mypy from 1.8.0 to 1.12.0 in /.github/workflows/requirements/style #20

Job	Run time
changes	2s
prechecks / validate	34s
prechecks / style	51s
prechecks / bootstrap-dev-rhel8	4m 6s
prechecks / audit / package-audits (windows-latest, powershell Invoke-Expression -Command "./share/spack/qa/windows_t...	2m 20s
prechecks / audit / package-audits (ubuntu-latest, bash)	4m 4s
prechecks / audit / package-audits (macos-latest, bash)	2m 37s
all-prechecks	0s
unit-tests	0s
bootstrap	0s
all	0s
	14m 34s

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