chore(deps): update pnpm to v8 (#1380)

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

Author: renovate[bot]

package.json

@@ -39,7 +39,7 @@
     "packages/redux-devtools-rtk-query-monitor/demo",
     "packages/redux-devtools-slider-monitor/examples/todomvc"
   ],
-  "packageManager": "pnpm@7.30.3",
+  "packageManager": "pnpm@8.0.0",
   "pnpm": {
     "overrides": {
       "@babel/highlight>chalk": "Methuselah96/chalk#v2-without-process"