misc(coro): deprecate sync methods when DPP_CORO is enabled

[Mishura4]

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[braindigitalis]

not sure I like this idea, as there are tons of bots using sync calls

[Mishura4]

We actively discourage using sync already, so the point is that they shouldn't, isn't it?

[braindigitalis]

that is true but we won't actually be removing them, the lib itself actively uses a couple of sync methods on startup to get number of shards etc.

[Mishura4]

I'll change it in the next few days

[Mishura4]

Wait i didn't mean to close it lmao

[Mishura4]

(The plan is still to change the warning very soon)