Feature: breacrumbs in tasks (useful for reactive execution time methods)

[tomloprod]

Create a "breadcrumbs" system in tasks. This system would allow us to add informative data to tasks to be used in the reactive execution time methods.

Example:

TimeWarden::task('Articles')->start();

foreach ($articles as $article) {
    // ...
    TimeWarden::leaveBreadcrumb(
        'message', // breadcrumb message
        Breadcrumb::TYPE, // breadcrumb type (enum)
        ['foo' => 'bar'] // custom metadata
    );
}

TimeWarden::stop(static function (Task $task): void {
    $task->onExceedsMinutes(10, static function (Task $task): void {
        // Do something with $task and $task->getLastBreadcrumbs()
    });
});