1.1.9 (Build: 2022123100)

• [Tests] Unpin MariaDB (MDL-72131)
• [Tests] Treat PHPUnit warnings as failures
• [Tests] PHP 7.4 and PostgreSQL 12 are now required by Moodle 4.1 (MDL-71747)
• [Tests] Bump GHA environment to use Ubuntu 22.04
• [Tests] Bump to actions/checkout@v3
• [Tests] Welcome to MOODLE_401_STABLE, 4.1.x release branch. Requirements in MDL-71747
• [Tests] Fix wording and @covers annotation
• [Tests] PHP 8.0 and PostgreSQL 13 are now required by Moodle 4.1 (MDL-74905)