Test

refactor: change freq_norm from string to enum #716

Job	Run time
s3_dates (3.9)	2m 18s
s3_dates (3.10)	1m 57s
s3_singlepath (3.9)	1m 43s
s3_singlepath (3.10)	1m 44s
s0_download	1m 18s
unit_tests	1m 25s
s1_s2 (3.9, linear, rma, asdf, false)	1m 27s
s1_s2_mpi (3.10, linear, rma)	3m 5s
s1_s2 (3.9, robust, rma, asdf, false)	1m 45s
s1_s2 (3.9, nroot, rma, asdf, false)	1m 47s
s1_s2 (3.9, selective, rma, asdf, false)	1m 51s
s1_s2 (3.9, auto_covariance, rma, asdf, false)	1m 52s
s1_s2 (3.9, pws, rma, asdf, false)	1m 44s
s1_s2 (3.10, linear, rma, asdf, false)	1m 26s
s1_s2 (3.10, robust, rma, asdf, false)	1m 36s
s1_s2 (3.10, nroot, rma, asdf, false)	1m 45s
s1_s2 (3.10, selective, rma, asdf, false)	1m 30s
s1_s2 (3.10, auto_covariance, rma, asdf, false)	1m 33s
s1_s2 (3.10, pws, rma, asdf, false)	2m 0s
s1_s2 (linear, 3.10, no, zarr, true)	1m 29s
s1_s2 (all, 3.9, phase_only, numpy)	1m 42s
	36m 57s

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