feat(presets): split datatables.net grouping

[MindTooth]

Changes

Tweak #23411 to be more specific as all datatables.net packages aren't always the same.

Project where all presets works: https://github.com/MindTooth/renovate-datatables.net-test/pulls

Context

I've had this in the back of my head for some time since my first pull request. And I wanted to improve it.

Why all the monorepo rules, are because that the individual packages (datatables.net-buttons) are combined with an additional style scheme (datatables.net-buttons-bs4) e.g. Bootstrap 4, Bulma, etc.

Documentation (please check one with an [x])

• I have updated the documentation, or
• No documentation update is required

How I've tested my work (please select one)

I have verified these changes via:

• Code inspection only, or
• Newly added/modified unit tests, or
• No unit tests but ran on a real repository, or
• Both unit tests + ran on a real repository

[MindTooth]

I'm not sure why the coverage dropped. 🤔

[viceice]

we normally group only when they are published together with same version or they need to be grouped because of peer dependency requirements

[MindTooth]

Summary, DataTables are composed of a base component, datatables.net(-bulma|bs4|dt)?, where e.g. -dt is their own styling. And individual plugins, datatables.net-scroller(-bulma|bs4|dt)?, where scroller is a plugin.

• The all have unique sourceUrls.
• They are all individually released together, base component is one, each plugin is another. Each component/plugin has their own version. In total, 8 packages share their release version.
• In total targeting sourceUrl, is (8 * 14 = ) 112 lines
• Almost always, will the user have at least the base component/plugin and an accompanying style ((-bulma|bs4|dt)?).

In summary, targeting sourceUrl will create many more lines. Just say so, and it will be done. 👍🏻

[viceice]

see comment 🤗

[renovate-release]

🎉 This PR is included in version 36.44.0 🎉

The release is available on:

• GitHub release
• 36.44.0

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