Bump pygments from 2.19.2 to 2.20.0 (#883) #1958

Job	Run time
test (ubuntu-latest, 3.10.18)	2m 27s
test (ubuntu-latest, 3.12.11)	1m 46s
test (windows-latest, 3.14.0, --cov-fail-under=100)	1m 31s
old-dependencies	34s
build / build	26s
test (macos-latest, 3.14.0, --cov-fail-under=100)	1m 7s
test (ubuntu-latest, 3.14.0, --cov-fail-under=100)	1m 0s
test (ubuntu-latest, 3.13.7)	1m 9s
test (ubuntu-latest, 3.11.13)	2m 19s
lint	34s
attest	7s
check / check	3s
deploy	0s
	13m 3s

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