fix(ci): install pinned macOS targets

Author: iwangjie

.github/workflows/ci.yml

@@ -84,6 +84,9 @@ jobs:
         with:
           targets: x86_64-apple-darwin, aarch64-apple-darwin
 
+      - name: Install pinned Rust targets
+        run: rustup target add x86_64-apple-darwin aarch64-apple-darwin
+
       - name: Cache cargo registry
         uses: actions/cache@v4
         with:
@@ -145,6 +148,9 @@ jobs:
         with:
           targets: x86_64-apple-darwin, aarch64-apple-darwin
 
+      - name: Install pinned Rust targets
+        run: rustup target add x86_64-apple-darwin aarch64-apple-darwin
+
       - name: Cache cargo registry
         uses: actions/cache@v4
         with: