docs(mkdocs.yml): Add Ellsp and Elsa #5729

Job	Run time
test (ubuntu-latest, 27.2, false)	2m 8s
test (ubuntu-latest, 28.2, false)	2m 46s
test (ubuntu-latest, 29.4, false)	2m 31s
test (macos-latest, 28.2, false)	4m 21s
test (macos-latest, 29.4, false)	4m 16s
test (windows-latest, 27.2, false)	3m 3s
test (windows-latest, 28.2, false)	3m 24s
test (windows-latest, 29.4, false)	3m 33s
test (ubuntu-latest, snapshot, true)	1m 4s
test (macos-latest, snapshot, true)	1m 57s
test (windows-latest, snapshot, true)	2m 55s
	31m 58s

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