Change DB_HOST to use host.docker.internal

Author: WizardLoop

src/bot.php

@@ -884,7 +884,7 @@ function RunBot(): void {
 $BOT_TOKEN = $env['BOT_TOKEN'];
 $DB_FLAG = $env['DB_FLAG'] ?? 'no';
 $BOT_NAME  = $env['BOT_NAME'] ?? 'GetAnyMessage';
-$dbHost    = $env['DB_HOST'] ?? 'localhost';
+$dbHost    = $env['DB_HOST'] ?? 'host.docker.internal';
 $dbPort    = $env['DB_PORT'] ?? 3306;
 $dbUser    = $env['DB_USER'] ?? 'mpuser';
 $dbPass    = $env['DB_PASS'] ?? 'mp_pass';