fix: Create a group unblocked for bot even if 1:1 chat is blocked

[iequidoo]

This needs a test, the test in the first commit is unrelated. @adbenitez, i can't reproduce #5514, the test in the first commit just works. Maybe you can clarify the scenario? Also you can try the fix from the second commit, though i'm unsure if the changed code is related to your scenario, this is the only place where a group request can be created for a bot.

EDIT: I've reproduced it and added a test to the second commit. @adbenitez, please check if it corresponds to your scenario.

Close #5514