Summary:
Hostname is required for collecting support bundle, install it in the images.
Original commit: f692a60e054e7aebfeac342477a7990e836b6ff6 / D38374

Test Plan: itest passes

Reviewers: anijhawan, jharveysmith

Reviewed By: anijhawan

Differential Revision: https://phorge.dev.yugabyte.com/D38479