Modify Python versions

Change Python 3.7 to 3.7.1

Author: GreyNewfie

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
         runs-on: ubuntu-latest
         strategy:
             matrix:
-                python-version: [ 3.7, 3.8, 3.9]
+                python-version: [ 3.7.1, 3.8, 3.9]
 
         steps:
             - uses: actions/checkout@v2