Update actions/setup-node action to v7

| datasource  | package            | from   | to     |
| ----------- | ------------------ | ------ | ------ |
| github-tags | actions/setup-node | v6.5.0 | v7.0.0 |


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

Author: renovate[bot]

.github/workflows/continuous-integration.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v6
-      - uses: actions/setup-node@v6
+      - uses: actions/setup-node@v7
         with:
           node-version: 24
           cache: yarn

.github/workflows/deploy-gh-pages.yml

@@ -24,7 +24,7 @@ jobs:
 #        working-directory: ./
     steps:
       - uses: actions/checkout@v6
-      - uses: actions/setup-node@v6
+      - uses: actions/setup-node@v7
         with:
           node-version: 24
           cache: yarn