Update meta.yaml

conda.recipe/meta.yaml

 package:
   name: fixhdr
-  version: 2021.158
+  version: 2020.212
 
 source:
   path: ../
 
 build:
   noarch: python
-  number: 1
+  number: 2
   script: {{ PYTHON }} -m pip install . --no-deps -vv
 
 requirements: