PHP Deprecations: Explicitly specify $escape with str_getcsv

[CarlosArceLopera]

Hi,

PHP 8.4 requires that a value be provided for the $escape parameter to str_getcsv().

See: https://moodle.atlassian.net/browse/MDL-83335

/var/www/site/public/admin/tool/advancedreplace/classes/file_search.php:642
str_getcsv(): the $escape parameter must be provided as its default value will change

Triggered by:

* tool_advancedreplace\file_search_test::test_get_id_from_csv#0
  /var/www/site/public/admin/tool/advancedreplace/tests/file_search_test.php:213

* tool_advancedreplace\file_search_test::test_get_id_from_csv#1
  /var/www/site/public/admin/tool/advancedreplace/tests/file_search_test.php:213

* tool_advancedreplace\file_search_test::test_get_id_from_csv#2
  /var/www/site/public/admin/tool/advancedreplace/tests/file_search_test.php:213

* tool_advancedreplace\file_search_test::test_get_id_from_csv#3
  /var/www/site/public/admin/tool/advancedreplace/tests/file_search_test.php:213

* tool_advancedreplace\file_search_test::test_resume#1 (2 times)
  /var/www/site/public/admin/tool/advancedreplace/tests/file_search_test.php:269

* tool_advancedreplace\file_search_test::test_resume#2 (2 times)
  /var/www/site/public/admin/tool/advancedreplace/tests/file_search_test.php:269

* tool_advancedreplace\file_search_test::test_resume#3 (3 times)
  /var/www/site/public/admin/tool/advancedreplace/tests/file_search_test.php:269

* tool_advancedreplace\file_search_test::test_resume#4 (3 times)
  /var/www/site/public/admin/tool/advancedreplace/tests/file_search_test.php:269

* tool_advancedreplace\file_search_test::test_resume#5 (2 times)
  /var/www/site/public/admin/tool/advancedreplace/tests/file_search_test.php:269

Best,
Carlos