Update test.yml

Author: ChuChencheng

.github/workflows/test.yml

@@ -27,7 +27,7 @@ jobs:
         node-version: ${{ matrix.node-version }}
     - uses: pnpm/action-setup@v2
       with:
-        version: 7
+        version: 6
         run_install: |
           - recursive: true
             args: [--frozen-lockfile]