chore(deps): update pnpm to v8 (#3)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -1,7 +1,7 @@
 {
   "name": "unplugin-vue-jsx",
   "version": "0.1.2",
-  "packageManager": "pnpm@7.2.1",
+  "packageManager": "pnpm@8.1.0",
   "description": "Vue JSX plugin for both Vue 2 and 3. Supports Rollup, Vite, esbuild and Webpack.",
   "keywords": [
     "unplugin",