Social: Check with ActivityPub test suite

[jancborchardt]

The page https://activitypub.rocks has a test suite at https://test.activitypub.rocks

We should check Social with that and make sure it passes. :) @nextcloud/social

[annando]

Just to clarify: The so called "test suite" is no real test suite, but only a survey.

[ArtificialOwl]

Hello @annando ! nice to see you on github too :-p

[rhonda]

I'm uncertain if that test suite there is really worth looking at, given that the certificate expired two months ago? Is this still in use?

[annando]

I guess that something like this is more promising: https://testsuite.feneas.org/

[ArtificialOwl]

duplicated with #1014