DESCRIPTION: Remove Code Climate coverage upload steps from GitHub
Actions workflow
CI: remove Code Climate coverage reporting (cc-test-reporter) and
related jobs; keep Codecov as source of truth
* **Why**
Code Climate’s test-reporter has been archived; their download/API path
is no longer served, which breaks our CC upload step (`cc-test-reporter
…` ends up downloading HTML/404).
* **What changed**
* Drop the Code Climate formatting/artifact steps from the composite
action `.github/actions/upload_coverage/action.yml`.
* Delete the `upload-coverage` job that aggregated and pushed to Code
Climate (`cc-test-reporter sum-coverage` / `upload-coverage`).
* **Impact**
* Codecov uploads remain; coverage stays visible via Codecov.
* No test/build behavior change—only removes a failing reporter path.
cherry-picked from 8bb8b2ce2d
Mehmet YILMAZ
Onur Tirtir
Gokhan Gulbiz