HTTP: Distrust environment

By default, requests accesses user's .netrc . Disable this using the only
available (though undocumented) way: by having requests distrust the
environment. An unfortunate side-effect is that it will now also ignore
proxy settings (which do come from the environment variables, which would
be fine to access for me, unlike the .netrc).

src/surykatka/http.py

@@ -206,15 +206,16 @@ def checkHttpStatus(
     parsed_url = urlparse(url)
     hostname = parsed_url.hostname
     request_kw = {"timeout": timeout}
+    session = requests.Session()
+    session.trust_env = False
+    request_kw["session"] = session
     # SNI Support
     if parsed_url.scheme == "https":
         # Provide SNI support
         base_url = urlunsplit(
             (parsed_url.scheme, parsed_url.netloc, "", "", "")
         )
-        session = requests.Session()
         session.mount(base_url, ForcedIPHTTPSAdapter(dest_ip=ip))
-        request_kw["session"] = session
         ip_url = url
     elif parsed_url.scheme == "http":
         # Force IP location