Bump codecov/codecov-action from 3 to 4 (#90)

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 3 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@v3...v4)

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

.github/workflows/ci.yml

@@ -58,7 +58,7 @@ jobs:
         if: matrix.destination != 'build_watchos'
         run: bundle exec fastlane generate_code_coverage
       - name: Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
 
   # Xcode-12:
   #   name: Xcode 12
@@ -82,4 +82,4 @@ jobs:
   #       if: matrix.destination != 'build_watchos_xcode12'
   #       run: bundle exec fastlane generate_code_coverage
   #     - name: Codecov
-  #       uses: codecov/codecov-action@v3
+  #       uses: codecov/codecov-action@v4