authz: always set `allowAccessByDefault` to `false` on dotcom
Created by: unknwon
To prevent private resources leaking due to misconfiguration, we should always set allowAccessByDefault
to false
on dotcom.
Status: I'd like to merge this after https://github.com/sourcegraph/sourcegraph/pull/26193 is deployed and tested on prod, in case they create confusion when there is an authz bug.