Feature: Add new version DNS API for SELECTEL hostinger

[vlad-kms]

Changes expands the existing Selectel DNS API script dns_selectel.sh to support the Selectel API version v2 (actual).
Now SELECTEL simultaneously works with two versions of the API: legacy DNS API and actual DNS API (new). The goal is to allow SELECTEL users to use the script for two versions.
https://developers.selectel.ru/docs/cloud-services/dns_api/dns_api_actual/

For existing installations where only the old version of the API (legacy) is used, nothing will have to be reconfigured and nothing needs to be done for older versions.

Variables that need to be controlled before starting:
export SL_Ver="v1" -- version API: 'v2' (actual) or 'v1' (legacy).
Default: v1

If SL_Ver is equal "v1", then you need to define the variable
export SL_Key="API_KEY" -- token Selectel (API key)
You can view or create it in the control panel in the upper right corner, open the Profile and Settings menu -> API Keys.
https://my.selectel.ru/profile/apikeys

If SL_Ver is equal "v2", then you need to define the following variables
export SL_Expire=60 -- token lifetime in minutes (0-1440).
Default: 1400 minutes
export SL_Login_ID=<account_id> -- account number in the control panel;
export SL_Project_Name=<project_name> -- name project.
export SL_Login_name=<login_name> - service user name.
You can view the name in the control panel:
in the upper right corner, open the menu ? Profile and settings ? User management section ? Service users tab
export SL_Pswd= - The service user password can be viewed when creating a user or changed to a new one.

[github-actions]

Please upgrade to the latest code and try again first. Maybe it's already fixed. acme.sh --upgrade If it's still not working, please provide the log with --debug 2, otherwise, nobody can help you.