desec: increase default `DESEC_PROPAGATION_TIMEOUT` by 60s about lego

[ldez]

@Atemu do you need help?

[Atemu]

Sorry, simply haven't found the time to get into this yet.

[ldez]

Hello,

Would it be possible to increase the default timeout as a workaround?

Yes

I'm not at all familiar with Go or else I would have opened a PR but perhaps something like

I will help you, so feel free to open a PR.

You just need to replace dns01.DefaultPropagationTimeout by 120 * time.second.

[Atemu]

I'll see what I can do.

I'd prefer to increase the default timeout by the delay inherent to the service rather than hard-coding a new timeout.