Add CovidHub ensemble forecasts (#373)

Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>

Author: cdcgov-hub-bot[bot]

auxiliary-data/weekly-model-submissions/2025-02-22-models-submitted-to-hub.csv

@@ -0,0 +1,13 @@
+"Model","Designated_Model"
+"CEPH-Rtrend_covid",TRUE
+"CFA_Pyrenew-Pyrenew_H_COVID",FALSE
+"CMU-TimeSeries",TRUE
+"CMU-climate_baseline",FALSE
+"JHU_CSSE-CSSE_Ensemble",TRUE
+"MOBS-GLEAM_COVID",TRUE
+"Metaculus-cp",TRUE
+"NEU_ISI-AdaptiveEnsemble",TRUE
+"OHT_JHU-nbxd",TRUE
+"UM-DeepOutbreak",TRUE
+"UMass-ar6_pooled",TRUE
+"UMass-gbqr",TRUE