dev-perl/DBIx-Class-InflateColumn-Object-Enum: Bump to 0.60.0

dev-perl/DBIx-Class-InflateColumn-Object-Enum: Bump to 0.60.0

- EAPI6

Upstream:
- { unset => ... $val } is passed to internal Object::Enum->new()
  for columns where { is_nullable => $val } is true.
- Columns where is_nullable is true require a column default_value.
- Setting a columns default to a value that is not already a defined
  enum value now automatically expands the enum value set.
- Setting a column value explicitly that is not a legal enum now
  throws an exception
- Object::Enum instances are marked immutable as tweaking them
  directly won't automatically update the database's representation.

Package-Manager: portage-2.3.2