ci: bump codecov/codecov-action from 2 to 5

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 2 to 5.
- [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...v5)

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

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

Author: dependabot[bot]

.github/workflows/main.yml

@@ -120,4 +120,4 @@ jobs:
         python -m tox
 
     - name: Upload Coverage to Codecov
-      uses: codecov/codecov-action@v2
+      uses: codecov/codecov-action@v5