Bump node from 24-slim to 25-slim

Bumps node from 24-slim to 25-slim.

---
updated-dependencies:
- dependency-name: node
  dependency-version: 25-slim
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/ci.yml

@@ -150,7 +150,7 @@ jobs:
       contents: read
       packages: write
     steps:
-      - uses: actions/download-artifact@v7
+      - uses: actions/download-artifact@v4
         with:
           path: ${{ runner.temp }}/digests
           pattern: digests-*

compose.yml

@@ -85,7 +85,7 @@ services:
 
   # Rebuilds the CSS/JS bundles into pipeline/built_assets whenever the sources change
   assets:
-    image: node:24-slim
+    image: node:25-slim
     working_dir: /app
     volumes:
       - .:/app