[terraform] include keyserver logs on keyserver init for qr code for self-host aws-deploy script

Summary:
This prints the logs for the primary keyserver so user can access the QR code

Depends on D13095

Test Plan:
ran a fresh keyserver deploy and was able to print the qr code

The output:

Reviewers: varun, bartek

Reviewed By: varun

Subscribers: ashoat, tomek

Differential Revision: https://phab.comm.dev/D13096