[8.x] change the placeholder of schema dump according to symfony placeholder...

[Hesammousavi]

i had a problem with shcema:dump
according to this issues #34257
after runing this command php artisan schema:dump im geting this error

Unknown suffix '$' used for variable 'port' (value '$LARAVEL_LOAD_PORT')
mysqldump: Error while setting value '$LARAVEL_LOAD_PORT' to 'port'

i figure out the placeholder of symfony is this code

    private function replacePlaceholders(string $commandline, array $env)
    {
        return preg_replace_callback('/"\$\{:([_a-zA-Z]++[_a-zA-Z0-9]*+)\}"/', function ($matches) use ($commandline, $env) {
            if (!isset($env[$matches[1]]) || false === $env[$matches[1]]) {
                throw new InvalidArgumentException(sprintf('Command line is missing a value for parameter "%s": ', $matches[1]).$commandline);
            }

            return $this->escapeArgument($env[$matches[1]]);
        }, $commandline);
    }

look at this line
'/"\$\{:([_a-zA-Z]++[_a-zA-Z0-9]*+)\}"/

according to this one
this is wrong command that you put on MysqlSchemaState

        return 'mysqldump '.$gtidPurged.' --column-statistics=0 --skip-add-drop-table --skip-add-locks --skip-comments --skip-set-charset --tz-utc --host=$LARAVEL_LOAD_HOST --port=$LARAVEL_LOAD_PORT --user=$LARAVEL_LOAD_USER --password=$LARAVEL_LOAD_PASSWORD $LARAVEL_LOAD_DATABASE';

i just replace this one to this

'mysqldump '.$gtidPurged.' --column-statistics=0 --skip-add-drop-table --skip-add-locks --skip-comments --skip-set-charset --tz-utc --host="${:LARAVEL_LOAD_HOST}" --port="${:LARAVEL_LOAD_PORT}" --user="${:LARAVEL_LOAD_USER}" --password="${:LARAVEL_LOAD_PASSWORD}" "${:LARAVEL_LOAD_DATABASE}"'

i don't know i'm telling right thing but if u help me to figure it can be helpful