Add rails 8 support (#2167)

* add rails 8 appraisal

* add rails 8 ci

* fix lint

* updatre gemfile

* fix lint

* fix specs

* fix specx=cs again

* fix specs

* fix specs

* f*** these specs already

* fix lint

* fix benchmarks

* f*** these specs already

* fix lint

* fis spcs

* fix ci

* Update test/sandbox/test/rendering_test.rb

Co-authored-by: Cameron Dutro <[email protected]>

* fix ci

* fix lint

* fix lint

* try fix benchmark ci

* Apply suggestions from code review

* Update test/sandbox/test/rendering_test.rb

---------

Co-authored-by: Cameron Dutro <[email protected]>
Co-authored-by: Joel Hawksley <[email protected]>

Author: 3 people

docs/CHANGELOG.md

@@ -26,6 +26,10 @@ nav_order: 5
 
     *Reegan Viljoen*
 
+* Add rails 8 support to CI.
+
+    *Reegan Viljoen*
+
 ## 3.20.0
 
 * Allow rendering `with_collection` to accept an optional `spacer_component` to be rendered between each item.