PowerDNS PDNS_API_URL API version issue

Welcome

[X] Yes, I'm using a binary release within 2 latest releases.
[X] Yes, I've searched similar issues on GitHub and didn't find any.
[X] Yes, I've included all information below (version, config, etc).

What did you expect to see?

Would lilke that lego accepts API version in PDNS_API_URL or to detect the version properly.

What did you see instead?

When 'PDNS_API_URL' is set to 'http://server/', without 'api/v1' prefix, API version is not detected and all pdns requests are made to / instead to /api/v1 so all PowerDNS requests fails.

When 'PDNS_API_URL' is set to 'http://server/api/v1' all pdns requests are made to /api/v1/api/v1. So version prefix is duplicated and again all PowerDNS request fails.

Why not just allow API version in URL?

Another project noticed the same issue - https://github.com/traefik/traefik/issues/9726

How do you use lego?

Binary

Reproduction steps

Install lego
Configure PDNS_API_KEY and PDNS_API_URL with http://server or with http://server/api/v1

Run

lego -a \                                             
-d <domain> \
-m <e-mail> \
--server <ACME server if used > \
--dns pdns \
renew

Version of lego

lego version 4.14.0 darwin/arm64

Logs

`PDNS_API_URL=https://< server >/api/v1` ```console ... Error

Cannot GET /api/v1/api

... ``` `PDNS_API_URL=https://< server >` ```console ... Error

Cannot GET /api

... ```

Go environment (if applicable)

No response

go-acme / lego