Plugin implementations should use PHP attributes instead of annotations

Right now the annotations are only supported for the following per the change record.

Annotation class Attribute class Available since
\Drupal\Core\Annotation\Action \Drupal\Core\Action\Attribute\Action 10.2.0
\Drupal\Core\Block\Annotation\Block \Drupal\Core\Block\Attribute\Block 10.2.0

Right now Able Player uses neither of these plugins. Will continue to monitor.

Annotations are used by the following Field Formatters:
- AbleplayerVideoFormatter
- AbleplayerSignLanguageFormatter
- AbleplayerRemoteVideoFormatter
- AbleplayerPosterImageFormatter
- AbleplayerChapterFormatter
- AbleplayerCaptionFormatter
- AbleplayerAudioFormatter

We have Attribute available for Field formatter: https://www.drupal.org/node/3420980 →

So we can start working on this.

I have raised the MR, but that needs to be targeted against the Drupal 10.3.x branch.
I am not sure how to do that.
Also, we need to thoroughly test this.

Thanks Vivek. Not sure we need to target against 10.3.x, this should all work against the 11.x branch. The tests themselves don't run currently, so seeing them fail on the pipeline is not surprising. The project has the goal of getting tests working, but any of the functional tests have stymied us.

The attribute conversion looks good. We'll keep this branch open as more attributes become available. As we prepare to move to support 10.x and greater versions of Drupal and remove support for 9.x, we can spin a new release that has the attributes in it and leave a 3.x version available for all on Drupal 9.x.

Thank you for your contributions to this work.

@theMusician

> Not sure we need to target against 10.3.x, this should all work against the 11.x branch.
Got it, thanks.

> We'll keep this branch open as more attributes become available.
But we don't have any other code using annotations.
Is there any other code for which we are waiting for the attributes to become available?

> Thank you for your contributions to this work.
Happy to help! :)

You are right, we don't have any other annotations. I thought there was a section of code but it turns out I was wrong.

As we get a 3.1.x release set we'll work this in.

Setting to needs review.

Thanks Vivek, this change is merged in the dev branch.

Happy to help! :)