Rename coverage upload step and add parameters (#3)

Updated the name of the coverage upload step and added token and slug parameters.

Author: shenxianpeng

.github/workflows/main.yml

@@ -37,10 +37,12 @@ jobs:
       - name: Run tests
         run: python -m pytest -q --cov=src/commit_check_mcp --cov-report=xml
 
-      - name: Upload coverage
+      - name: Upload coverage reports to Codecov
         if: matrix.python-version == '3.12'
         uses: codecov/codecov-action@v5
         with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          slug: commit-check/commit-check-mcp
           files: ./coverage.xml
 
   build: