CI: Change to action-based codecov upload

.github/workflows/coverage.yml

@@ -96,3 +96,12 @@ jobs:
       env:
         TESTS: coverage-${{ matrix.test }}${{ matrix.num }}
       run: ./ci/ci-script.bash
+
+    - name: Upload coverage data to Codecov
+      uses: codecov/codecov-action@v4
+      with:
+        fail_ci_if_error: true
+        disable_search: true
+        files: ./nodist/obj_dir/coverage/app_total.info
+        token: ${{ secrets.CODECOV_TOKEN }}
+        verbose: true

ci/ci-script.bash

@@ -194,10 +194,6 @@ elif [ "$CI_BUILD_STAGE_NAME" = "test" ]; then
   esac
   # 22.04: ccache -s -v
   ccache -s
-
-  # Upload coverage data
-  if [[ $TESTS == coverage-* ]]; then
-    bash <(cat ci/coverage-upload.sh) -f nodist/obj_dir/coverage/app_total.info
   fi
 else
   ##############################################################################