CI: Expose detected plugin name to other workflow jobs

[PatTheMav]

Description

Adds early detection of the configured plugin name in workflows so the name can be re-used in later workflows without the need to do a full repository checkout or installation of 3rd party utilities (e.g. the release creation step).

Motivation and Context

Reduce necessary fixup steps for plugin developers when finalising their releases.

Fixes #105.

How Has This Been Tested?

Tested with a tagged release on a fork of the repository.

Types of changes

• Performance enhancement (non-breaking change which improves efficiency)

Checklist:

• My code has been run through clang-format.
• I have read the contributing document.
• My code is not on the master branch.
• The code has been tested.
• All commit messages are properly formatted and commits squashed where appropriate.
• I have included updates to all appropriate documentation.

[RytoEX]

Seems fine.

[CodeYan01]

With the new displayName change, have you tested creating a new release, with a space in the displayName? I am getting an error: https://github.com/CodeYan01/media-playlist-source/actions/runs/7257209427/job/19770748632

[PatTheMav]

With the new displayName change, have you tested creating a new release, with a space in the displayName? I am getting an error: https://github.com/CodeYan01/media-playlist-source/actions/runs/7257209427/job/19770748632

Right, it's not supposed to be used for file names now that it can have spaces and other weird characters in it, forgot to remove that again.

[PatTheMav]

@CodeYan01 pls check again.

[CodeYan01]

In the Issue, you commented that it will fallback to name if displayName is not available, but I'm getting an error when the field is not there. https://github.com/CodeYan01/media-playlist-source/actions/runs/7284773565

With the displayName it now works perfectly. https://github.com/CodeYan01/media-playlist-source/actions/runs/7284781779

Thank you!

[PatTheMav]

In the Issue, you commented that it will fallback to name if displayName is not available, but I'm getting an error when the field is not there. https://github.com/CodeYan01/media-playlist-source/actions/runs/7284773565

With the displayName it now works perfectly. https://github.com/CodeYan01/media-playlist-source/actions/runs/7284781779

Thank you!

Ah, good old pipefail, should be fixed in a bit.

[CodeYan01]

Tested both cases, works now.