Remove manual cfile install in workflow

.github/workflows/python-package.yml

@@ -21,20 +21,13 @@ jobs:
  steps:
  - name: Checkout
  uses: actions/checkout@v4
- - name: Checkout cfile repo
- uses: actions/checkout@v4
- with:
- repository: cogu/cfile
- ref: v0.3.2
- path: cfile_0.3
  - name: Set up Python ${{ matrix.python-version }}
  uses: actions/setup-python@v5
  with:
  python-version: ${{ matrix.python-version }}
  - name: Install dependencies
  run: |
  python -m pip install flake8
- python -m pip install ./cfile_0.3
  if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
  - name: Run unit tests
  run: |