Bump codecov/codecov-action from 2 to 4 (#33)

* Bump codecov/codecov-action from 2 to 4

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 2 to 4.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v2...v4)

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

Signed-off-by: dependabot[bot] <[email protected]>

* Update CI.yml

---------

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

.github/workflows/CI.yml

@@ -43,6 +43,7 @@ jobs:
       - name: Coverage Process
         uses: julia-actions/julia-processcoverage@v1
       - name: Coverage Upload
-        uses: codecov/codecov-action@v2
+        uses: codecov/codecov-action@v4
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
+          file: lcov.info