ci(docker): de-dockerize version checks

Author: thomasleplus

.github/workflows/npm-check-versions.yml

@@ -0,0 +1,34 @@
+---
+name: NPM Check Versions
+
+on:
+  schedule:
+    - cron: "0 0 * * 0"
+  workflow_dispatch:
+
+permissions: {}
+
+defaults:
+  run:
+    working-directory: md
+
+jobs:
+  npm-check-versions:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        with:
+          persist-credentials: false
+      - name: Set up Node
+        uses: actions/setup-node@2028fbc5c25fe9cf00d9f06a71cc4710d4507903 # v6.0.0
+        with:
+          node-version: 24
+      - name: Check outdated dependencies
+        shell: bash
+        run: |
+          set -euo pipefail
+          IFS=$'\n\t'
+          if npx npm-check-updates | tee -a /dev/stderr | grep -q -e '→' ; then
+            exit 1
+          fi