Missing compressible on `application/yaml` mime type

[styfle]

The text/yaml mime type is compressible already

https://github.com/jshttp/mime-db/blob/80b4e6ee439509e9fac9ca3c6befd159519e7ccc/db.json#L9017-L9020

But the recently added application/yaml is missing compressible

https://github.com/jshttp/mime-db/blob/80b4e6ee439509e9fac9ca3c6befd159519e7ccc/db.json#L7069-L7071