For jcsda_emc_spack_stack: Add metis to virtual package jedi-mpas-env #1261

Job	Run time
shell	7m 53s
rhel8-platform-python	23m 37s
macos (3.11)	48m 1s
ubuntu (ubuntu-latest, 3.10, clingo, false)	34m 17s
ubuntu (ubuntu-latest, 3.12, clingo, false)	19m 25s
ubuntu (3.10, ubuntu-latest, original, false)	21m 29s
ubuntu (3.6, ubuntu-20.04, clingo, false)	16m 19s
clingo-cffi	23m 40s
	3h 14m 41s

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