Merge pull request 'add_ulmity' (#61) from add_ulmity into master

Reviewed-on: https://git.rz.ens.wtf/Klub-RZ/metis/pulls/61

data/calendars.json

@@ -19,6 +19,7 @@
       "DDR": {},
       "BandarrêtdurgENS": {},
       "L'Hômonerie": {},
+      "Ulmity": {},
       "Club Inutile ☔": {}
     },
     "BDS": {},
@@ -118,6 +119,9 @@
       "T5WoHbs4FT5A945Z": {
         "name": "CinéClub"
       },
+      "zmgdYw62RatzmGDt": {
+	"name": "Ulmity"
+      },
       "iXGysEGxo7EsKjwG": {
 	"name": "Ambassadeur·rice·s santé",
 	"short_name": "Amba. santé",