Convert sampledata plugins to service provider

[laoneo]

Summary of Changes

Converts the media action plugins to service providers.

Testing Instructions

Install sample data from the control panel of joomla.

Actual result BEFORE applying this Pull Request

All works.

Expected result AFTER applying this Pull Request

All works.

Link to documentations

Please select:

• Documentation link for docs.joomla.org:

• No documentation changes for docs.joomla.org needed

• Pull Request link for manual.joomla.org:

• No documentation changes for manual.joomla.org needed

[ghazal]

I have tested this item ✅ successfully on 2b4d0a4

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[heelc29]

I have tested this item ✅ successfully on 57f89a8

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[joomdonation]

I have tested this item ✅ successfully on 57f89a8

Code review. Real testing by installing blog and multilingual sample data, all works well.

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[joomdonation]

RTC

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/40173.}