Static teams in GH should use App installations as source for organization list
As not all organizations associated with the Eclipse Foundation are directly associated to projects, we need to fill the gap for discovering the additional organizations when possible. The best way to do this would be to leverage the GH Sync app installations we now use for access in a large number of our calls as an additional source of organizations.
We will likely want to do a join of the 2 lists to support all organizations and to cover the gap where some organizations may not have the sync application installed. This should give us much better coverage while still covering edge cases.