trying to fix the infinite install and adding a caching mechanism

.github/workflows/tests.yml

@@ -7,12 +7,16 @@ on:
 
 jobs:
  test:
- runs-on: ubuntu-latest
+ runs-on: python:3.9
  steps:
  - name: Checkout Repository
  uses: actions/checkout@v4
+ - name: Cache pip install
+ uses: actions/setup-python@v5
+ with:
+ python-version: '3.9'
+ cache: 'pip'
  - name: Install Dependencies
- run: |
- pip install -r requirements-dev.txt
- - name: Test
+ run: pip install -r requirements-dev.txt
+ - name: Run test
  run: python -m pytest