Correct pypi classifier string #4476

Job	Run time
build (_delphi_utils_python, delphi_utils)	1m 45s
build (changehc, delphi_changehc)	1m 29s
build (claims_hosp, delphi_claims_hosp)	1m 24s
build (doctor_visits, delphi_doctor_visits)	1m 21s
build (google_symptoms, delphi_google_symptoms)	2m 15s
build (hhs_hosp, delphi_hhs)	1m 11s
build (nchs_mortality, delphi_nchs_mortality)	2m 13s
build (nssp, delphi_nssp)	1m 14s
build (nwss_wastewater, delphi_nwss)	1m 7s
build (quidel_covidtest, delphi_quidel_covidtest)	1m 31s
build (sir_complainsalot, delphi_sir_complainsalot)	1m 12s
	16m 42s

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