Update pnpm/action-setup action to v6 (#1507)

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

Author: renovate[bot]

.github/actions/install/action.yml

@@ -5,7 +5,7 @@ runs:
   using: composite
   steps:
     - name: Setup pnpm
-      uses: pnpm/action-setup@v4
+      uses: pnpm/action-setup@v6
       with:
         version: 10
 

.github/workflows/orama_sync.yml

@@ -18,7 +18,7 @@ jobs:
     steps:
       - name: Checkout repository
         uses: actions/checkout@v6
-      - uses: pnpm/action-setup@v4
+      - uses: pnpm/action-setup@v6
         with:
           version: 10
       - name: Setup Node.js