fix: reduce ci test linker pressure

Author: wangtsiao

.github/workflows/ci.yml

@@ -27,7 +27,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
-      - run: cargo test --workspace
+      - run: cargo test --workspace --jobs 1
 
   fmt:
     name: Rustfmt