Fix CI: require logger before active_record (#277)

See rails/rails#54264. ActiveSupport required `logger` implicitly through `concurrent-ruby`, which removed its own `logger` dependency in 1.3.5.

Author: jas14

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## [Unreleased]
 
+### Other changes
+
+- Fix `logger` dependency issues in CI. [#277](https://github.com/splitwise/super_diff/pull/277)
+
 ## 0.15.0 - 2025-01-06
 
 ### Features

spec/spec_helper.rb

@@ -23,6 +23,7 @@
 #---
 
 begin
+  require 'logger'
   require 'active_record'
 
   active_record_available = true