[1.x] Test CI before release #915

Job	Run time
libmamba tests (ubuntu-latest, Release)	6m 8s
libmamba tests (ubuntu-latest, Debug)	7m 34s
Mamba tests (ubuntu-latest, Release, 3.8)	10m 19s
Micromamba integration tests (ubuntu-latest, Release)	18m 1s
libmamba tests (macos-latest, Release)	3m 57s
Mamba tests (ubuntu-latest, Debug, 3.8)	12m 11s
Micromamba integration tests (ubuntu-latest, Debug)	19m 50s
libmamba tests (macos-latest, Debug)	4m 31s
Mamba tests (macos-latest, Release, 3.8)	10m 16s
Micromamba integration tests (macos-latest, Release)	16m 23s
Micromamba integration tests (macos-latest, Debug)	14m 39s
Mamba tests (macos-latest, Debug, 3.8)	10m 0s
	2h 13m 49s

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