ci: pass CODECOV_TOKEN to upload action

Author: Kai (OpenClaw)

.github/workflows/ci.yml

@@ -72,5 +72,6 @@ jobs:
         if: matrix.python-version == '3.11'
         uses: codecov/codecov-action@v3
         with:
+          token: ${{ secrets.CODECOV_TOKEN }}
           files: ./coverage.xml
           fail_ci_if_error: false