fix: monkey patch file gem for rspec

Author: chemica

spec/spec_helper.rb

@@ -1,3 +1,7 @@
+# frozen_string_literal: true
+
+require_relative 'support/file_exists_patch'
+
 if ENV['COVERAGE']
   require 'coveralls'
   require 'codeclimate-test-reporter'

spec/support/file_exists_patch.rb

@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+# Monkey patch to add back File.exists? for compatibility with the files gem
+# This is needed because File.exists? was removed in Ruby 3.2
+class File
+  class << self
+    alias exists? exist?
+  end
+end