Upgrade Mitoteam to Beta Version

I had been trapping its errors in test bootstrap, but that no longer seems to work.

tests/bootstrap.php

@@ -6,9 +6,6 @@ setlocale(LC_ALL, 'en_US.utf8');
 
 function phpunit10ErrorHandler(int $errno, string $errstr, string $filename, int $lineno): bool
 {
-    if (strIncrement85(PHP_VERSION_ID, $errno, $errstr, $filename)) {
-        return true; // message suppressed - stop error handling
-    }
     $x = error_reporting() & $errno;
     if (
         in_array(
@@ -34,18 +31,6 @@ function phpunit10ErrorHandler(int $errno, string $errstr, string $filename, int
     return false; // continue error handling
 }
 
-function strIncrement85(int $version, int $errno, string $errstr, string $filename): bool
-{
-    if ($version < 80500 || $errno !== E_DEPRECATED) {
-        return false;
-    }
-    if (preg_match('/canonical/', $errstr) === 1 && preg_match('/mitoteam/', $filename) === 1) {
-        return true;
-    }
-
-    return false;
-}
-
 if (!method_exists(PHPUnit\Framework\TestCase::class, 'setOutputCallback')) {
     set_error_handler('phpunit10ErrorHandler');
 }