use caching, ignore lcov file

Author: Zeitsperre

.github/workflows/main.yml

@@ -20,6 +20,7 @@ jobs:
       - uses: actions/setup-python@v6
         with:
           python-version: "3.10"
+          cache: 'pip'
       - name: Install tox
         run: |
           pip install tox>=4.30.3
@@ -44,6 +45,7 @@ jobs:
         name: Setup Python ${{ matrix.python-version }}
         with:
           python-version: ${{ matrix.python-version }}
+          cache: 'pip'
       - name: Install tox 📦
         run: pip install "tox>=4.30.3" "tox-gh>=1.5"
       - name: Run tests with tox ⚙️
@@ -67,6 +69,7 @@ jobs:
         name: Setup Python 3.10
         with:
           python-version: "3.10"
+          cache: 'pip'
       - name: Build documentation 🏗️
         run: |
           pip install -e .[dev]

.gitignore

@@ -20,3 +20,4 @@ docs/_build
 *.orig
 .coverage
 .pytest_cache
+coverage.lcov