build(deps): bump pygments from 2.18.0 to 2.19.1 in /lib/spack/docs #86

Job	Run time
changes	3s
prechecks / bootstrap-dev-rhel8	4m 17s
prechecks / style	54s
prechecks / pylint	1m 1s
prechecks / import-check	2m 46s
prechecks / validate	36s
prechecks / audit / package-audits (windows-latest, powershell Invoke-Expression -Command "./share/spack/qa/windows_t...	5m 16s
prechecks / audit / package-audits (ubuntu-latest, bash)	8m 26s
prechecks / audit / package-audits (macos-latest, bash)	5m 3s
all-prechecks	1s
bootstrap	0s
unit-tests	0s
coverage	0s
all	1s
	28m 24s

Provide feedback