Drop Rails 6.0 from Appraisals

Author: jas14

Appraisals

@@ -9,13 +9,6 @@ rails_dependencies =
   end
 
 appraisals = {
-  rails_6_0:
-    proc do
-      instance_eval(&rails_dependencies)
-
-      gem 'rails', '~> 6.0.0'
-      gem 'sqlite3', '~> 1.4.0', platform: %i[ruby mswin mingw]
-    end,
   rails_6_1:
     proc do
       instance_eval(&rails_dependencies)
@@ -73,7 +66,7 @@ appraisals = {
     end
 }
 
-rails_appraisals = %i[no_rails rails_6_0 rails_6_1 rails_7_0 rails_7_1]
+rails_appraisals = %i[no_rails rails_6_1 rails_7_0 rails_7_1]
 rspec_appraisals = %i[rspec_lt_3_10 rspec_gte_3_10 rspec_gte_3_13]
 
 rails_appraisals.each do |rails_appraisal|

README.md

@@ -113,7 +113,7 @@ for more on how to do that.
 `super_diff` is [tested][gh-actions] to work with
 Ruby >= 3.x,
 RSpec 3.x,
-and Rails >= 6.x.
+and Rails >= 6.1.
 
 [gh-actions]: https://github.com/splitwise/super_diff/actions?query=workflow%3ASuperDiff