Bump codecov/codecov-action from 3.1.6 to 4.5.0 (#30)

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 3.1.6 to 4.5.0.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@ab904c4...e28ff12)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/continuous-integration.yml

@@ -48,7 +48,7 @@ jobs:
         run: python3 -m pytest --cov=sansmic --cov=tests examples/ tests/
 
       - name: Upload coverage reports to Codecov
-        uses: codecov/codecov-action@ab904c41d6ece82784817410c45d8b8c02684457 # v3.1.6
+        uses: codecov/codecov-action@e28ff129e5465c2c0dcc6f003fc735cb6ae0c673 # v4.5.0
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           flags: ubuntu-latest
@@ -87,7 +87,7 @@ jobs:
         run: python3 -m pytest --cov=sansmic --cov=tests examples/ tests/
 
       - name: Upload coverage reports to Codecov
-        uses: codecov/codecov-action@ab904c41d6ece82784817410c45d8b8c02684457 # v3.1.6
+        uses: codecov/codecov-action@e28ff129e5465c2c0dcc6f003fc735cb6ae0c673 # v4.5.0
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           flags: ${{ matrix.os }}