fix runner

.gitea/workflows/dl.yml

@@ -3,11 +3,13 @@ on: [push]
 
 jobs:
   lint:
-    runs-on: python:3.10
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - run: pip install poetry
-      - run: poetry install
+      - uses: actions/setup-python@v4
+        with:
+          python-version: 3.10
+      - uses: Gr1N/setup-poetry@v8
       - run: poetry run flake8 .
       - run: poetry run mypy .