Upgrade briar with random test data for private groups
Draft since depends on briar!1788 (merged) to be merged.
Shouldn't fully close #113 (closed) since this does not add private groups for our deterministic test data.
Edited by Mikolai Gütschow
Draft since depends on briar!1788 (merged) to be merged.
Shouldn't fully close #113 (closed) since this does not add private groups for our deterministic test data.