fix ci cache

Author: KotlinIsland

.github/workflows/check.yaml

@@ -27,7 +27,7 @@ jobs:
         id: cache
         with:
           path: .venv
-          key: venv-${{ runner.os }}-${{ steps.full-python-version.outputs.version }}-${{ hashFiles('**/poetry.lock') }}
+          key: venv-${{ runner.os }}-${{ matrix.python-version }}-${{ hashFiles('**/poetry.lock') }}
       - name: Ensure cache is healthy
         if: steps.cache.outputs.cache-hit == 'true'
         run: timeout 10s poetry run pip --version || rm -rf .venv
@@ -43,7 +43,7 @@ jobs:
         with:
           python-version: "3.7"
       - name: Run image
-        uses: abatilo/actions-poetry@v2
+        uses: abatilo/actions-poetry@v2.1.6
         with:
           poetry-version: ${{ env.POETRY_VERSION }}
       - run: poetry config virtualenvs.in-project true

tests/test_runtime_only/test_literal_type.py

@@ -4,7 +4,7 @@
 import pytest
 
 
-@pytest.mark.skipif(sys.version_info < (3, 9))
+@pytest.mark.skipif(sys.version_info < (3, 9), reason="need 3.9 for LiteralType")
 def test_literal_type_positive() -> None:
     from typing import Literal
 
@@ -13,7 +13,7 @@ def test_literal_type_positive() -> None:
     assert isinstance(Literal[1, 2], LiteralType)
 
 
-@pytest.mark.skipif(sys.version_info < (3, 9))
+@pytest.mark.skipif(sys.version_info < (3, 9), reason="need 3.9 for LiteralType")
 def test_literal_type_negative() -> None:
     from basedtyping.runtime_only import LiteralType