chore(deps): update pnpm/action-setup action to v6 (#850)

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

Author: renovate[bot]

.github/workflows/validate-renovate-config.yml

@@ -22,7 +22,7 @@ jobs:
         with:
          persist-credentials: false
 
-      - uses: pnpm/action-setup@fc06bc1257f339d1d5d8b3a19a8cae5388b55320 # v5.0.0
+      - uses: pnpm/action-setup@903f9c1a6ebcba6cf41d87230be49611ac97822e # v6.0.3
         with:
           version: '10.33.0'