Remove codecov uploading for now

Author: Martin Raiber

.github/workflows/main.yml

@@ -35,11 +35,4 @@ jobs:
       run: make check
 
     - name: Test code
-      run: make test
-
-    - name: Upload coverage
-        uses: codecov/codecov-action@v4
-        if: steps.fork-check.outputs.is-fork == 'false'
-        with:
-          token: ${{ secrets.CODECOV_TOKEN }}
-          fail_ci_if_error: true
+      run: make test