Bump codecov/codecov-action from 3.1.5 to 4.0.1

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 3.1.5 to 4.0.1.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@4fe8c5f...e0b68c6)

---
updated-dependencies:
- dependency-name: codecov/codecov-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/ci.yml

@@ -62,7 +62,7 @@ jobs:
       run: |
         FINSY_TEST_NO_BENCHMARK=1 COVERAGE_RUN=true pytest --cov finsy
     - name: Upload Coverage to Codecov
-      uses: codecov/codecov-action@4fe8c5f003fae66aa5ebb77cfd3e7bfbbda0b6b0 # v3.1.5
+      uses: codecov/codecov-action@e0b68c6749509c5f83f984dd99a76a1c1a231044 # v4.0.1
     - name: Format Check
       run: |
         black --check .
@@ -115,7 +115,7 @@ jobs:
           . venv/bin/activate
           cd examples; PYTHONPATH=.. COVERAGE_RUN=true pytest -k simple --cov ../finsy --cov-report xml --cov-config ../.coveragerc
       - name: Upload Coverage to Codecov
-        uses: codecov/codecov-action@4fe8c5f003fae66aa5ebb77cfd3e7bfbbda0b6b0 # v3.1.5
+        uses: codecov/codecov-action@e0b68c6749509c5f83f984dd99a76a1c1a231044 # v4.0.1
         with:
           token: ${{ secrets.FINSY_CODECOV_TOKEN }}
           directory: ./examples/