fix ci

Author: itanxiao

.github/workflows/ci.yml

@@ -55,10 +55,12 @@ jobs:
       - name: Build System Info
         run: rustc --version
 
-        # bumpalo 3.15.4 is not compatible with rust 1.67.0
-      - name: Downgrade bumpalo to 3.14.0
+      - name: Downgrade bumpalo
         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
+
       - name: Run tests default features
         run: cargo test