Failing `plugin_checks_test::test_db_install_file` test

[ctam]

With the introduction of core\db\plugin_checks_test::test_db_install_file in MDL-85666, we might need to update the install.xml file for this test to pass.

core\db\plugin_checks_test::test_db_install_file with data set "mod_questionnaire" ('mod_questionnaire', 'mod', 'questionnaire', '/home/runner/work/moodle/mood...nnaire')
XMLDB structure does not match the install.xml file in /home/runner/work/moodle/moodle/mod/questionnaire/db/install.xml
Failed asserting that two DOM documents are equal.
--- Expected
+++ Actual
@@ @@
         <KEY FIELDS="id" NAME="primary" TYPE="primary"/>
       </KEYS>
       <INDEXES>
-        <INDEX FIELDS="surveyid,deleted" NAME="quest_question_sididx" UNIQUE="false"/>
+        <INDEX FIELDS="surveyid, deleted" NAME="quest_question_sididx" UNIQUE="false"/>
       </INDEXES>
     </TABLE>
     <TABLE COMMENT="questionnaire_quest_choice table retrofitted from MySQL" NAME="questionnaire_quest_choice">

/home/runner/work/moodle/moodle/lib/tests/db/plugin_checks_test.php:55
/home/runner/work/moodle/moodle/lib/phpunit/classes/basic_testcase.php:64