Issues with the orientation parameter: returning invalid value

[JoshLedgard]

Steps to Reproduce

1. Tried: Unsplash::Photo.search("cat", 1, 5, orientation: :landscape)
   Unsplash::Error: orientation is invalid, orientation does not have a valid value
   from /Users/joshledgard/.rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/unsplash-3.1.1/lib/unsplash/connection.rb:152:in `request'

2. Tried Unsplash::Photo.search("cat", 1, 5, 'landscape')

WARN -- : The tags property in this endpoint is deprecated. https://changelog.unsplash.com/deprecations/2021/07/12/tags-search-deprecation.html

Observed Behaviour

See the error message and the warning above for the two calls.

Expected Behaviour

A way to set an orientation.

Technical Notes

using latest 3.1.1.