Update actions/setup-node action to v6.3.0 (#9)

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

Author: renovate[bot]

.github/workflows/app-shell-sync.yml

@@ -29,7 +29,7 @@ jobs:
           path: app-shell
 
       - name: Set up Node.js
-        uses: actions/setup-node@395ad3262231945c25e8478fd5baf05154b1d79f # v6.1.0
+        uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: "24"
 

.github/workflows/sdk-docs-sync.yml

@@ -29,7 +29,7 @@ jobs:
           path: sdk
 
       - name: Set up Node.js
-        uses: actions/setup-node@395ad3262231945c25e8478fd5baf05154b1d79f # v6.1.0
+        uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: "24"