Support symfony/dom-crawler:^6.4

Hi @mortona2k,
Thank you for the report. I've changed the minimum symfony/dom-crawler version to ^6. Now there should be no conflict with storybook dependencies.
I've to check better how to organize the three dependencies but for now I think it can be okay.

Thanks.

reinchek → changed the visibility of the branch origin/3447165-support-symfonydom-crawler6.4 to hidden.

I tested the specific case installing 'drupal/storybook:^1.0@beta'.
Now works.
I set the issue's status to Fixed. If something doesn't add up, feel free to comment below. Thanks!