Squash migrations

[bctiemann]

• Squashes migrations
• Bumps plugin version to 0.2.0
• Bumps minimum required NetBox version to 4.4.0
• Removes separate min version restriction in navigation.py

[arthanson]

The tests are failing and I'm getting the same error:

  File "/Users/ahanson/dev/work/netbox/venv/lib/python3.13/site-packages/debug_toolbar/panels/sql/tracking.py", line 235, in execute
    return self._record(super().execute, sql, params)
           ~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/ahanson/dev/work/netbox/venv/lib/python3.13/site-packages/debug_toolbar/panels/sql/tracking.py", line 160, in _record
    return method(sql, params)
  File "/Users/ahanson/dev/work/netbox/venv/lib/python3.13/site-packages/django/db/backends/utils.py", line 122, in execute
    return super().execute(sql, params)
           ~~~~~~~~~~~~~~~^^^^^^^^^^^^^
  File "/Users/ahanson/dev/work/netbox/venv/lib/python3.13/site-packages/django/db/backends/utils.py", line 79, in execute
    return self._execute_with_wrappers(
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~^
        sql, params, many=False, executor=self._execute
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/Users/ahanson/dev/work/netbox/venv/lib/python3.13/site-packages/django/db/backends/utils.py", line 92, in _execute_with_wrappers
    return executor(sql, params, many, context)
  File "/Users/ahanson/dev/work/netbox/venv/lib/python3.13/site-packages/django/db/backends/utils.py", line 100, in _execute
    with self.db.wrap_database_errors:
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/ahanson/dev/work/netbox/venv/lib/python3.13/site-packages/django/db/utils.py", line 91, in __exit__
    raise dj_exc_value.with_traceback(traceback) from exc_value
  File "/Users/ahanson/dev/work/netbox/venv/lib/python3.13/site-packages/django/db/backends/utils.py", line 105, in _execute
    return self.cursor.execute(sql, params)
           ~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^
  File "/Users/ahanson/dev/work/netbox/venv/lib/python3.13/site-packages/psycopg/cursor.py", line 97, in execute
    raise ex.with_traceback(None)
django.db.utils.ProgrammingError: column netbox_custom_objects_customobjecttype.schema does not exist
LINE 1: ... "netbox_custom_objects_customobjecttype"."name", "netbox_cu...