[test] Exclude AR postgres tests that use $1 instead of ? for binds (#914)

Author: dr-itz

test/rails/excludes/postgresql/ActiveRecord/PostgresqlConnectionTest.rb

@@ -1,2 +1,3 @@
 exclude :test_connection_options, 'Connection options not supported'
 exclude :test_table_alias_length_logs_name, 'We reuse max identifer length for this so no query is made to be logged for the rails test'
+exclude :test_statement_key_is_logged, 'test uses $1 instead of ? for bind'

test/rails/excludes/postgresql/SchemaAuthorizationTest.rb

@@ -0,0 +1 @@
+exclude :test_auth_with_bind, 'test uses $1 instead of ? for bind'