Fix invalid GitHub `authorize_url`.
Created by: ykzts
$ ./bin/rspec ./spec/lib/gitlab/github_import/client_spec.rb
F
Failures:
1) Gitlab::GithubImport::Client #authorize_url
Failure/Error: expect(client.authorize_url("https://app.com")).to eq(authorize_url)
expected: "https://github.com/login/oauth/authorize?response_type=code&client_id=YOUR_APP_ID&redirect_uri=https%3A%2F%2Fapp.com&scope=repo%2C+user%2C+user%3Aemail"
got: "https://api.github.com/oauth/authorize?response_type=code&client_id=YOUR_APP_ID&redirect_uri=https%3A%2F%2Fapp.com&scope=repo%2C+user%2C+user%3Aemail"
(compared using ==)
# ./spec/lib/gitlab/github_import/client_spec.rb:12:in `block (2 levels) in <top (required)>'
# -e:1:in `<main>'
Finished in 5.87 seconds
1 example, 1 failure
Failed examples:
rspec ./spec/lib/gitlab/github_import/client_spec.rb:4 # Gitlab::GithubImport::Client test