chore(ci)(deps): bump pnpm/action-setup from 4 to 6 (#2154)

Author: dependabot[bot]

.github/workflows/showcase-smoke.yml

@@ -19,7 +19,7 @@ jobs:
     timeout-minutes: 45
     steps:
       - uses: actions/checkout@v4
-      - uses: pnpm/action-setup@v4
+      - uses: pnpm/action-setup@v6
       - uses: actions/setup-node@v4
         with:
           node-version: 22