Bump codecov/codecov-action from 4.0.1 to 4.3.1

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 4.0.1 to 4.3.1.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v4.0.1...v4.3.1)

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

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

.github/workflows/coverage.yml

@@ -43,7 +43,7 @@ jobs:
         --exclude-files **/mock.rs **/weights/* **/weights.rs \
         --out xml
 
-    - uses: codecov/codecov-action@v4.0.1
+    - uses: codecov/codecov-action@v4.3.1
       with:
         token: ${{ secrets.CODECOV_TOKEN }}
         slug: RegionX-Labs/RegionX-Node