FIXME: Break CI by testing the unimplemented basic client auth method

Signed-off-by: Emanuele Aina <emanuele.aina@collabora.com>

docker-compose-gitlab.yaml

@@ -19,7 +19,7 @@ services:
               'scope' => ['openid', 'profile', 'email'],
               'response_type' => 'code',
               'issuer' => 'http://oidc-provider:5556/dex',
-              'client_auth_method' => 'query',
+              # 'client_auth_method' => 'post', # 'basic' is the default
               'discovery' => false, # GitLab discovery expects HTTPS
               'uid_field' => 'preferred_username',
               'client_options' => {