Update actions/setup-node action to v6 (#224)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: astroanu

.github/workflows/deploy-dev.yml

@@ -8,7 +8,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/setup-node@v5
+      - uses: actions/setup-node@v6
         with:
           node-version: 22
       - run: corepack enable

.github/workflows/deploy-prod.yml

@@ -8,7 +8,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/setup-node@v5
+      - uses: actions/setup-node@v6
         with:
           node-version: 22
       - run: corepack enable