fix ci

Author: itanxiao

.github/workflows/ci.yml

@@ -59,7 +59,7 @@ jobs:
         run: cargo update -p bumpalo@3.15.4 --precise 3.14.0
 
       - name: Downgrade half
-        run: cargo update -p half@2.4.0  --precise 2.3.1
+        run: cargo update -p half@2.4.0  --precise 2.2.1
 
       - name: Run tests default features
         run: cargo test