ci: rearrange doc test to shorten the testing time (#975) #5985

Job	Run time
Unit tests on ubuntu-latest	8m 56s
Lints and doc tests on ubuntu-latest	6m 45s
Unit tests on windows-latest	16m 47s
Lints and doc tests on windows-latest	11m 9s
Unit tests on macos-13	10m 9s
Lints and doc tests on macos-13	10m 45s
Unit tests on macos-14	9m 40s
Lints and doc tests on macos-14	3m 46s
Memory leak checks	2m 54s
CI status checks	2s
	1h 20m 53s

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