Add Luganodes RPC in PaaS

[rezerov]

This PR adds Luganodes RPC to the Platform as a Service section.

Luganodes RPC provides blockchain JSON-RPC endpoints on dedicated bare-metal infrastructure, operated by Luganodes, an institutional staking provider. Free tier available, no card required.

Website: https://rpc.luganodes.com
Docs: https://docs.luganodes.com

Checklist

• The URL is not already present in the list (check with CTRL/CMD+F in the raw markdown file).
• Each description starts with an uppercase character and ends with a period.
  Example: solc-js - JavaScript bindings for the compiler.
• Drop all A / An prefixes at the start of the description.

[vercel]

@rezerov is attempting to deploy a commit to the Personal Team on Vercel.

A member of the Team first needs to authorize it.

[rezerov]

@ahmet Could you please have a look at this PR and get it merged? If there's any changes needed, do let me know. Thanks!