Update pnpm/action-setup action to v6

Author: renovate[bot]

action.yml

@@ -16,7 +16,7 @@ inputs:
 runs:
   using: composite
   steps:
-    - uses: pnpm/action-setup@v4.0.0
+    - uses: pnpm/action-setup@v6.0.7
       with:
         version: ${{ inputs.pnpm-version }}