Remove deprecated server validation use

[tomasMizera]

As a follow-up of MerginMaps/python-api-client#223. Removes outdated validation of a server URL.

Requires a new py-api release.

[jsjtadie]

In Python, if you want to remove the use of deprecated server authentication, it depends on the specific library or framework you're using. For example, in some cases related to HTTP requests, you might need to update the way you handle authentication methods.

Let's say you were using an older version of  urllib  and had some deprecated server auth code like this:

import urllib.request

Old deprecated way (for example's sake, might not be actual deprecated code like this)

auth_handler = urllib.request.HTTPBasicAuthHandler()
opener = urllib.request.build_opener(auth_handler)
urllib.request.install_opener(opener)
 

You'd need to switch to a more modern and recommended approach. For instance, using  requests  library which has a cleaner and up-to-date way to handle authentication:

import requests

Using requests for authentication

response = requests.get('https://example.com', auth=('username', 'password'))
 

[ValentinBuira]

The python convention is to use _ as a throwaway when we absolutely need place holder variable (e.g unpack variables), here I think we can just remove it altogether

Suggested change

	_ = MerginClient(url, proxy_config=get_qgis_proxy_config(url))
	MerginClient(url, proxy_config=get_qgis_proxy_config(url))

[ValentinBuira]

same as above