net-mgmt/netbox: Update to 3.0.6

• Update pkg-descr while I'm here.

Changelog:

Enhancements:

• Default to current user when creating journal entries via REST API
• Include type, ID, and slug on object view
• Enable filtering cables by termination type & ID in REST API
• Include count of assigned virtual machines under platform view

Bug Fixes:

• Fix missing actions column on user-configured tables
• Fix exception when viewing a large number of child IPs within a prefix
• Fix site/provider network validation for circuit termination API serializer
• Pre-populate location data when adding a device to a rack
• Fix filtering connections by site ID

https://github.com/netbox-community/netbox/releases/tag/v3.0.6