Update lint-and-smoke.yml

Author: mkudlej

.github/workflows/lint-and-smoke.yml

@@ -7,7 +7,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2
         with: 
-          python-version: '3.7'
+          python-version: '3.8'
           architecture: x64
       - uses: actions/cache@v2
         env: