Incorrect disk size unit when bulk editing VMs

[lassebm]

Deployment Type

Self-hosted

Triage priority

I volunteer to perform this work (if approved)

NetBox Version

v4.1.6

Python Version

3.12

Steps to Reproduce

1. Create VM
2. Bulk edit VM

Expected Behavior

"MB" unit shown for disk size in bulk edit form, as this is the unit for disk size in NetBox >= 4.1

Observed Behavior

"GB" unit shown for disk size in bulk edit form.