fix: update CI workflow to fix test failures

- Use pytest config from pyproject.toml (simplify pytest command)
- Add fail-fast: false to matrix strategy
- Update codecov action to v4
- Fix coverage configuration

Author: VoxHash

.github/workflows/ci.yml

@@ -12,6 +12,7 @@ jobs:
     strategy:
       matrix:
         python-version: ["3.11", "3.12"]
+      fail-fast: false
 
     steps:
       - uses: actions/checkout@v4
@@ -41,10 +42,10 @@ jobs:
 
       - name: Test with pytest
         run: |
-          pytest --cov=bookmark_checker --cov-report=xml --cov-report=term-missing
+          pytest
 
       - name: Upload coverage
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           file: ./coverage.xml
           fail_ci_if_error: false