feat: add ability to specify the default WorkerArgs …

[dtatarkin]

… when parsing from the command line using the WorkerArgs.from_cli() method.

This may be useful if you want to implement a custom command-line interface (CLI) command to run project-specific workers with custom default arguments.

Here is how I use Taskiq with Django:

import logging
import os
from collections.abc import Sequence

import configurations
from taskiq.abc.cmd import TaskiqCMD
from taskiq.cli.worker.args import WorkerArgs
from taskiq.cli.worker.run import run_worker

logger = logging.getLogger(__name__)

class ProjectWorkerCMD(TaskiqCMD):
    short_help = "Run Taskiq worker"

    def exec(self, args: Sequence[str]) -> None:
        os.environ.setdefault("DJANGO_SETTINGS_MODULE", "project.settings.web")
        os.environ.setdefault("DJANGO_CONFIGURATION", "Web")
        configurations.setup()

        worker_args = WorkerArgs.from_cli(args, defaults=dict(
            fs_discover=True,
            app_dir="src/project/root/",
            tasks_pattern=['**/taskiq/tasks.py'],
        ))
        run_worker(args=worker_args)