Forzar python 3.8

Author: Diego

.github/workflows/python-lint.yaml

@@ -1,4 +1,4 @@
-name: Python List
+name: Python Lint
 
 on: [push, pull_request]
 
@@ -11,13 +11,20 @@ jobs:
       github.event_name == 'push' || github.event.pull_request.head.repo.full_name !=
       github.repository
 
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: [3.8]
+        os: [ubuntu-latest]
 
     steps:
       - uses: actions/checkout@v2
 
-      - name: Set up Python
+      - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
 
       - name: Install dependencies
         working-directory: sols/python