Fix TCP connection timeout

[sosthene-nitrokey]

Ureq does not use the timeout for the opening of the TCP connection, and instead uses the default timeout of 30s.

See algesten/ureq#595 (comment)

[ansiwen]

In general it would be useful to also write what and why you do something in the change, not only giving the undelivered motivation. I can’t easily understand, why you set the connect timeout to 10 here, and how is the behavior before and after.

[sosthene-nitrokey]

There is a bug in ureq that cause the call to connect to always use the connect_timeout value, even when there is a custom timeout value. connect_timeout has a default of 30s, so this overrides it with the value for the global request timeout, so that we have the behaviour we expect.