remove uses

Author: aleksandr-kotlyar

.github/workflows/main.yml

@@ -4,7 +4,6 @@ on:
 jobs:
   pytest:
     name: Pytest
-    uses: actions/checkout@v2
     runs-on: ubuntu-latest
     container:
       image: docker.pkg.github.com/aleksandr-kotlyar/python_and_gitlab/python-3.7.6-alpine-req:ver-14-mimesis-4.1.2