Update CDN location of mermaid from v10 to v11 (#763) #1691

Job	Run time
old-dependencies	36s
lint	40s
test (windows-latest, 3.13.0, --cov-fail-under=100)	2m 27s
test (macos-latest, 3.13.0, --cov-fail-under=100)	56s
test (ubuntu-latest, 3.13.0, --cov-fail-under=100)	1m 37s
test (ubuntu-latest, 3.12.4)	2m 35s
test (ubuntu-latest, 3.11.5)	2m 12s
test (ubuntu-latest, 3.10.13)	2m 22s
test (ubuntu-latest, 3.9.18)	2m 11s
build / build	18s
attest	9s
check / check	1s
deploy	0s
	16m 4s

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