Fix artifact uploads(hopefully)

.drone.yml

@@ -23,12 +23,11 @@ steps:
 
     environment:
       BUCKET: carbon-artifacts
-      ACCOUNT:       
+      B2_ACCOUNT_ID:
         from_secret: b2_account_id
-      KEY: 
+      B2_APPLICATION_KEY: 
         from_secret: b2_application_key
     commands:
       - source environment
-      - b2 authorize-account $ACCOUNT $KEY
       - b2 upload-file $BUCKET $FILENAME $FILENAME
       - echo Build artifacts avaliable at `b2 make-friendly-url $BUCKET $FILENAME`