Bump codecov/codecov-action from 3.1.5 to 4.2.0

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 3.1.5 to 4.2.0.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v3.1.5...v4.2.0)

---
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

@@ -34,7 +34,7 @@ jobs:
           arch: ${{ matrix.julia-arch }}
       - uses: julia-actions/julia-runtest@v1
       - uses: julia-actions/julia-processcoverage@v1.2
-      - uses: codecov/codecov-action@v3.1.5
+      - uses: codecov/codecov-action@v4.2.0
         with:
           files: lcov.info
       - uses: coverallsapp/github-action@master