feat: add Services::resetServicesCache() to reset services cache

[kenjis]

Description Supersedes #8896

• add a method to reset services cache.

Checklist:

• [x] Securely signed commits
• [x] Component(s) with PHPDoc blocks, only if necessary or adds value
• [ ] Unit testing, with >80% coverage
• [x] User guide updated
• [x] Conforms to style guide

[datamweb]

LGTM!

[kenjis]

@pyromanci Do you approve this?

[pyromanci]

Sorry I've been out of the country.

This is fine.

On Thu, Jul 4, 2024 at 7:37 PM kenjis @.***> wrote:

@pyromanci https://github.com/pyromanci Do you approve this?

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