Increase or standardize max_length on models to 255 characters

[MeganerdDev]

Environment

• Nautobot version: v2.2.2
• nautobot-device-lifecycle-mgmt version: v2.1.1

Proposed Functionality

There was previously an effort to standardize the max_length on models in Nautobot Core The proposal is to follow a similar pattern for this App Alternatively if a standardization for models makes less sense here, an increase of the max_length for character fields for some fields may be in order eg: support_level max_length is 64, which needs to be increased

Some fields might not be suited for a standardization of 255-character, like image_file_checksum and can be left as-is

Related efforts on Nautobot Core

https://github.com/nautobot/nautobot/issues/2906 https://github.com/nautobot/nautobot/pull/5355