fix yml

Author: youyuanwu

.github/workflows/CI.yml

@@ -45,7 +45,7 @@ jobs:
       run: cargo test --all -- --nocapture
 
     - name: Run llvm-cov
-      run: cargo run llvm-cov --lcov --output-path lcov.info
+      run: cargo llvm-cov --lcov --output-path lcov.info
 
     - name: Show cov summary
       run: cargo llvm-cov report --summary-only