Migrations not reversible

[whitej6]

Environment

• Python version: 3.11
• Nautobot version: 2.1.x
• nautobot-device-lifecycle-mgmt version: latest

Expected Behavior

nautobot-server migrate nautobot_device_lifecycle_mgmt zero

Observed Behavior

Following migrations do not have a reverse_code

• 0019
• 0017
• 0008

Following tables need to be empty to be able to be reversible

• 0004_squash__0004_0014_0015_0016 - nautobot_device_lifecycle_mgmt_validatedsoftwarelcm

Steps to Reproduce

[whitej6]

0004_squash__0004_0014_0015_0016 - causes problems on migrate zero, after migrate zero this entry many need to be manually removed from the django_migrations table.

[chris-tomkins-flexgrid]

Also affected by this, I believe - 0019_cve_and_contract_m2m_migration is not reversible when nautobot-server migrate nautobot_device_lifecycle_mgmt zero

[bryanculver]

We're going to constrain the scope of this story to addressing the missing reverse_code. The squash migration will be a separate fix.