dml_write_exception when calling tool_customlang_utils::checkout

In MariaDB (v10.5.13) and MySQL (v8.0.26), calling the tool_customlang_utils::checkout function throws an error:

dml_write_exception: Error writing to database (Incorrect string value: '\xF0\x9F\x91\x8B' for column `moodle`.`phpu_tool_customlang`.`original` at row 1
INSERT INTO phpu_tool_customlang (lang,componentid,stringid,original,master,timemodified,outdated,local,timecustomized) VALUES(?,?,?,?,?,?,?,?,?)
[array (
  0 => 'en',
  1 => '495000',
  2 => 'welcomeback',
  3 => 'Welcome back, {$a->firstname}! 👋',
  4 => 'Welcome back, {$a->firstname}! 👋',
  5 => 1642067673,
  6 => 0,
  7 => NULL,
  8 => NULL,
)])
This error does not happen using PgSQL (v 14.1).