Build

allow ruamel.yaml 0.18 #1409

Job	Run time
ubuntu, Python 3.8, conda-standalone	7m 32s
ubuntu, Python 3.9, conda-standalone	12m 27s
ubuntu, Python 3.10, conda-standalone-nightly	7m 48s
ubuntu, Python 3.11, micromamba	6m 35s
macos, Python 3.8, conda-standalone-nightly	39m 0s
macos, Python 3.10, micromamba	19m 46s
macos, Python 3.11, conda-standalone	35m 46s
windows, Python 3.8, conda-standalone	16m 27s
windows, Python 3.9, conda-standalone-nightly	24m 34s
windows, Python 3.10, conda-standalone	18m 17s
windows, Python 3.11, conda-standalone-nightly	17m 55s
Canary Build	0s
	3h 26m 7s

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