Conditionalize for ActiveRecord 7.1+

- Also remove old conditional

spec/migration_lock_timeout/migration_spec.rb

@@ -5,23 +5,28 @@
 require 'strong_migrations' if Gem.loaded_specs.has_key? 'strong_migrations'
 require_relative '../../lib/migration-lock-timeout'
 
-ACTIVE_RECORD_MIGRATION_CLASS = if ActiveRecord.gem_version < '5.0'
-                                  ActiveRecord::Migration
-                                else
-                                  ActiveRecord::Migration[ActiveRecord::VERSION::STRING.to_f]
-                                end
+ACTIVE_RECORD_MIGRATION_CLASS = ActiveRecord::Migration[ActiveRecord::VERSION::STRING.to_f]
 
 def expect_create_table
-  expect(ActiveRecord::Base.connection).to receive(:execute).
-      with('BEGIN', 'TRANSACTION').
+  if ActiveRecord.gem_version >= '7.1'
+    expect_any_instance_of(ActiveRecord::ConnectionAdapters::PostgreSQLAdapter).to receive(:execute).
+        with('BEGIN', 'TRANSACTION').
+        and_call_original
+    expect_any_instance_of(ActiveRecord::ConnectionAdapters::PostgreSQLAdapter).to receive(:execute).
+      with(/CREATE TABLE/).
       and_call_original
-  expect(ActiveRecord::Base.connection).to receive(:execute).
-    with(/CREATE TABLE/).
-    and_call_original
+  else
+    expect(ActiveRecord::Base.connection).to receive(:execute).
+        with('BEGIN', 'TRANSACTION').
+        and_call_original
+    expect(ActiveRecord::Base.connection).to receive(:execute).
+      with(/CREATE TABLE/).
+      and_call_original
+  end
 end
 
 RSpec.describe ActiveRecord::Migration do
-
+  before { ActiveRecord::Base.logger = Logger.new(STDOUT) }
   describe '#migrate' do
 
     before(:each) do