net-mgmt/netbox: Update to 2.5.7

Enhancements:

• Enable filtering of devices by rack face
• Add button to copy unlocked secret to clipboard
• Add Markdown rendering for provider NOC/admin contact fields
• Add cable types for OS1/OS2 singlemode fiber
• Add port types for APC fiber
• Enable filtering cables list by connection status
• Clarify purpose of tags field on interface edit form

Bug Fixes:

• Allow filtering devices by null rack position
• Don't display connect button for wireless interfaces
• Correct foreground color of device roles in rack elevations
• Remove duplicate display of VRF RD on IP address view
• Fix filtering of nullable character fields
• Fix ordering regions by site count
• Fix config context list and edit forms to use Select2 elements
• Cable type in filter form should be blank by default
• Fix assigned prefixes link on VRF view
• Fix empty connected circuit link on device interfaces list
• Fix bulk editing of pass-through ports

The changelog is also available here:

https://github.com/digitalocean/netbox/blob/v2.5.7/CHANGELOG.md

Approved by: joneum (mentor)
Differential Revision: https://reviews.freebsd.org/D19297