Types are not generated correctly when using Component restriction based on Tags

[hey-cwuerzlhuber]

Current behavior:
When using the pull-components and generate-typescript-typedefs it's not possible to get proper types for component groups, when using restriction based on tags. Types for sub Blocks will be generated with unknown, which is not the case, when using component whitelisting based on component, or based on folder.

Expected behavior:
Component groups based on Tags are correctly resolved (like folder component groups), and types are generated accordingly.

Steps to reproduce:

1. Setup a Tag and assign it to one or multiple components in the Block Library
2. Open a Page Content Type Block and assign a Blocks field type and check "Allow only specific components to be inserted" and selected created Tag
3. Download component specification via the cli by running the pull-components command
4. Generate type definitions by running the generate-typescript-typedefs command
5. Block field will be typed with unknown[]

Related code:

Generated Code:

export interface SbContentPage {
  headline?: string
  subline?: string
  content?: unknown[]
  component: 'content_page'
  _uid: string
}