Postgres 16 trailing junk after parameter

[bwalkerl]

Getting a few unit test errors in Postgres 16 on MOODLE_402_STABLE because of this - it probably affects other branches as well.

local_assessfreq\frequency_test::test_get_events_due_by_month
dml_read_exception: Error reading from database (ERROR:  trailing junk after parameter at or near "$5G"
LINE 5:                            AND s.endyear = $5GROUP BY s.endm...
                                                   ^
SELECT s.endmonth, COUNT(s.id) as count
                      FROM phpu_local_assessfreq_site s
                 LEFT JOIN phpu_course c ON s.courseid = c.id
                     WHERE s.module IN ($1,$2,$3,$4)
                           AND s.endyear = $5GROUP BY s.endmonth
                     ORDER BY s.endmonth ASC
[array (
  0 => 'quiz',
  1 => 'assign',
  2 => 'scorm',
  3 => 'choice',
  4 => 2020,
)])

/var/www/moodle-44/lib/dml/moodle_database.php:494
/var/www/moodle-44/lib/dml/moodle_read_slave_trait.php:293
/var/www/moodle-44/lib/dml/pgsql_native_moodle_database.php:358
/var/www/moodle-44/lib/dml/pgsql_native_moodle_database.php:1044
/var/www/moodle-44/local/assessfreq/classes/frequency.php:956
/var/www/moodle-44/local/assessfreq/tests/frequency_test.php:693
/var/www/moodle-44/lib/phpunit/classes/advanced_testcase.php:72

local_assessfreq\frequency_test::test_get_events_due_by_activity
dml_read_exception: Error reading from database (ERROR:  trailing junk after parameter at or near "$1G"
LINE 4:                      WHERE s.endyear = $1GROUP BY s.module
                                               ^
SELECT s.module, COUNT(s.id) as count
                      FROM phpu_local_assessfreq_site s
                 LEFT JOIN phpu_course c ON s.courseid = c.id
                     WHERE s.endyear = $1GROUP BY s.module
                     ORDER BY s.module ASC
[array (
  0 => 2020,
)])

/var/www/moodle-44/lib/dml/moodle_database.php:494
/var/www/moodle-44/lib/dml/moodle_read_slave_trait.php:293
/var/www/moodle-44/lib/dml/pgsql_native_moodle_database.php:358
/var/www/moodle-44/lib/dml/pgsql_native_moodle_database.php:1044
/var/www/moodle-44/local/assessfreq/classes/frequency.php:1058
/var/www/moodle-44/local/assessfreq/tests/frequency_test.php:909
/var/www/moodle-44/lib/phpunit/classes/advanced_testcase.php:72

local_assessfreq\frequency_test::test_get_events_due_monthly_by_user
dml_read_exception: Error reading from database (ERROR:  trailing junk after parameter at or near "$5G"
LINE 6:                            AND s.endyear = $5GROUP BY s.endm...
                                                   ^
SELECT s.endmonth, COUNT(u.id) as count
                      FROM phpu_local_assessfreq_site s
                INNER JOIN phpu_local_assessfreq_user u ON s.id = u.eventid
                INNER JOIN phpu_course c ON s.courseid = c.id
                     WHERE s.module IN ($1,$2,$3,$4)
                           AND s.endyear = $5GROUP BY s.endmonth
                     ORDER BY s.endmonth ASC
[array (
  0 => 'quiz',
  1 => 'assign',
  2 => 'scorm',
  3 => 'choice',
  4 => 2020,
)])

/var/www/moodle-44/lib/dml/moodle_database.php:494
/var/www/moodle-44/lib/dml/moodle_read_slave_trait.php:293
/var/www/moodle-44/lib/dml/pgsql_native_moodle_database.php:358
/var/www/moodle-44/lib/dml/pgsql_native_mood/var/www/mwp-44/lib/dml/moodle_database.php:494le_database.php:1044
/var/www/moodle-44/local/assessfreq/classes/frequency.php:1009
/var/www/moodle-44/local/assessfreq/tests/frequency_test.php:973
/var/www/moodle-44/lib/phpunit/classes/advanced_testcase.php:72