chore(deps): update actions/setup-node action to v6 (#4320)

Co-authored-by: homarr-renovate[bot] <158783068+homarr-renovate[bot]@users.noreply.github.com>

.github/workflows/deployment-docker-image.yml

@@ -61,7 +61,7 @@ jobs:
           persist-credentials: false
       - uses: pnpm/action-setup@v4
         if: env.SKIP_RELEASE == 'false'
-      - uses: actions/setup-node@v5
+      - uses: actions/setup-node@v6
         if: env.SKIP_RELEASE == 'false'
         with:
           node-version: 24.11.0

.github/workflows/update-contributors.yml

@@ -32,7 +32,7 @@ jobs:
 
       - uses: pnpm/action-setup@v4
       - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           node-version: ${{ matrix.node-version }}
           cache: "pnpm"