build(deps): bump mypy from 1.11.1 to 1.14.0 in /lib/spack/docs #81

Job	Run time
changes	4s
prechecks / bootstrap-dev-rhel8	4m 18s
prechecks / validate	40s
prechecks / style	54s
prechecks / import-check	1m 6s
prechecks / pylint	1m 2s
prechecks / audit / package-audits (windows-latest, powershell Invoke-Expression -Command "./share/spack/qa/windows_t...	5m 12s
prechecks / audit / package-audits (ubuntu-latest, bash)	8m 24s
prechecks / audit / package-audits (macos-latest, bash)	6m 0s
all-prechecks	1s
unit-tests	0s
bootstrap	0s
coverage	0s
all	1s
	27m 42s

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