chore(deps): update actions/setup-node action to v6 (#248)

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

Author: renovate[bot]

.github/workflows/firebase-live.yml

@@ -14,7 +14,7 @@ jobs:
         uses: pnpm/action-setup@v4
 
       - name: Setup Node
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           node-version: '^22.20.0'
           cache: 'pnpm'

.github/workflows/firebase-preview.yml

@@ -14,7 +14,7 @@ jobs:
         uses: pnpm/action-setup@v4
 
       - name: Setup Node
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           node-version: '^22.20.0'
           cache: 'pnpm'

.github/workflows/main.yml

@@ -19,7 +19,7 @@ jobs:
         uses: pnpm/action-setup@v4
 
       - name: Setup Node
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           node-version: '^22.20.0'
           cache: 'pnpm'