Emacs

ci: Revert to explicit version number #744

Job	Run time
test (ubuntu-latest, 26.3, false)	30s
test (ubuntu-latest, 27.2, false)	28s
test (ubuntu-latest, 28.2, false)	22s
test (ubuntu-latest, 29.2, false)	26s
test (macos-latest, 26.3, false)	1m 34s
test (macos-latest, 27.2, false)	2m 0s
test (macos-latest, 28.2, false)	1m 30s
test (macos-latest, 29.2, false)	2m 5s
test (windows-latest, 26.3, false)	1m 29s
test (windows-latest, 27.2, false)	1m 4s
test (windows-latest, 28.2, false)	1m 3s
test (windows-latest, 29.2, false)	1m 14s
test (ubuntu-latest, snapshot, true)	21s
test (macos-latest, snapshot, true)	1m 57s
test (windows-latest, snapshot, true)	1m 3s
	17m 6s

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