fix(node): align Node.js versions with upstream for 5 scripts

Update scripts where upstream requires a newer Node.js version:
- iobroker: 22 → 24 (upstream .nvmrc)
- kima-hub: 20 → 22 (upstream Dockerfile)
- myip: 22 → 24 (upstream Dockerfile)
- outline: 22 → 24 (upstream Dockerfile)
- shelfmark: 22 → 24 (upstream Dockerfile)

Skipped 15 scripts where our version is already newer than upstream.

Ref: community-scripts/ProxmoxVE#13870

ct/outline.sh

@@ -28,7 +28,7 @@ function update_script() {
     exit
   fi
 
-  NODE_VERSION="22" setup_nodejs
+  NODE_VERSION="24" setup_nodejs
 
   if check_for_gh_release "outline" "outline/outline"; then
     msg_info "Stopping Services"

ct/shelfmark.sh

@@ -29,7 +29,7 @@ function update_script() {
     exit
   fi
 
-  NODE_VERSION="22" setup_nodejs
+  NODE_VERSION="24" setup_nodejs
   PYTHON_VERSION="3.12" setup_uv
 
   if check_for_gh_release "shelfmark" "calibrain/shelfmark"; then