dt_available_pull_post_types Filter Not Working

[turtlepod]

Describe the bug

There's a filter to add non-existing post type to the pull option.
https://10up.github.io/distributor/dt_available_pull_post_types.html

But it's not working because this filter results is compared to the distributable_post_types() function which uses post_type_exists check.

Summary:

• There's a filter to add non-existing post type.
• But we check it using post_type_exists
• It's always getting removed.

dt_available_pull_post_types Filter:
https://github.com/10up/distributor/blob/develop/includes/utils.php#L274-L283

	$pull_post_types = apply_filters( 'dt_available_pull_post_types', $post_types, $remote_post_types, $local_post_types, $connection, $type );

	if ( ! empty( $pull_post_types ) ) {
		$post_types = array();
		foreach ( $pull_post_types as $post_type ) {
			if ( in_array( $post_type['slug'], $distributable_post_types, true ) ) {
				$post_types[] = $post_type;
			}
		}
	}

distributable_post_types Function:
https://github.com/10up/distributor/blob/develop/includes/utils.php#L325

$post_types = array_filter( $post_types, 'post_type_exists' );

Steps to Reproduce

• There's a filter to add non-existing post type.
• But we check it using post_type_exists
• It's always getting removed.

Screenshots, screen recording, code snippet

n/a - see description

Environment information

WP 6.4.3 / Distributor 2.0.3

WordPress information

WP 6.4.3 / Distributor 2.0.3

Code of Conduct

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