Let's Encrypt - more DNS providers for Certbot or switch to ACME.sh / LEGO

Is your feature request related to a problem? Please describe.
My DNS provider is REG.ru. I need to be able to manage wildcard certificates with Nginx Proxy Manager. My DNS provider did not exist in the current provider list in Nginx Proxy Manager panel. And because Nginx Proxy Manager exists in Docker Container it's really hard to alter anything.

Describe the solution you'd like
There is 3 options:

1. Add plugin for Certbot: https://github.com/free2er/certbot-regru (but it's pretty old one).
2. Switch to ACME Shell script system: https://github.com/acmesh-official/acme.sh (tons of DNS providers).
3. Switch to LEGO, Let's Encrypt client written in GO: https://github.com/go-acme/lego (tons of DNS providers).

Describe alternatives you've considered
For now I need to manually create wildcard certificates and manage them separately from Nginx Proxy Manager.

The issue names no files or tests; start by tracing the existing Let's Encrypt DNS-provider flow exposed in the Nginx Proxy Manager panel and its Docker image. Compare the three proposed integration paths, then define one supported provider or client path and verify that wildcard certificate issuance and renewal work for REG.ru.