Error with python 3.6 (removing)

Author: astrochun

.github/workflows/python-package.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.6', '3.7', '3.8']
+        python-version: ['3.7', '3.8']
 
     steps:
     - name: Checkout MSC