update: packageManager version

Author: baiwusanyu-c

package.json

@@ -4,7 +4,7 @@
   "private": false,
   "type": "module",
   "version": "1.0.0-beta.1",
-  "packageManager": "^pnpm@7.0.0",
+  "packageManager": "pnpm@6.32.4",
   "keywords": [
     "cssvars",
     "sass",