Incorrect Omega Ruby and Alpha Pokémon Version Group Name in Sprites and Pokémon Form Sprites

[SamuelAppleby]

Describe the Bug

If we query:

pokemon//sprites/gen-vi/

or

pokemon-form//sprites/gen-vi/

The name of the version group for Omega Ruby and Alpha Sapphire is:

"omegaruby-alphasapphire"

It should be:

"omega-ruby-alpha-sapphire"

As per:

version-group/16

Steps to Reproduce

Query the endpoints pokemon//sprites/gen-vi/ or pokemon-form//sprites/gen-vi/. The version group name of Omega Ruby and Alpha Sapphire is incorrect.

Resolving the Bug

Anyone is open to making a PR for this issue.