[demo] Allow workspace to work with a non-system workspaceMember object (#15547)

For demo purposes, we want to work with workspaceMember has a non-system
object, allowing it to be displayed on the product, to be added custom
fields etc.
It is something we may want to do later anyway. 
This PR adds a bypassPermissionChecks on workspaceMember repository
calls. This does not provide more permissions than before for other
workspaces: workspaceMember being a system object, permissions are
already bypassed for this one. (Note that actions such inviting a new
workspaceMember, updating a workspaceMember are protected by a system
permission checked in the relevant places).

This work does **not** allow any workspace to switch their
workspaceMember object to non-system, the switch is still manual.

packages/twenty-server/src/engine/core-modules/approved-access-domain/approved-access-domain.resolver.ts

@@ -40,6 +40,7 @@ export class ApprovedAccessDomainResolver {
       await this.twentyORMGlobalManager.getRepositoryForWorkspace<WorkspaceMemberWorkspaceEntity>(
         currentWorkspace.id,
         'workspaceMember',
+        { shouldBypassPermissionChecks: true },
       );
 
     const workspaceMember = await workspaceMemberRepository.findOneOrFail({