Set name for reusable workflow

[corona10]

Visibility does not look good; let's set the name.

cc @hugovk

Linked PRs

• gh-124471: Set name for unnamed reusable workflow #124475
• [3.13] gh-124471: Set name for unnamed reusable workflow (GH-124475) #125256
• [3.12] gh-124471: Set name for unnamed reusable workflow (GH-124475) #125257

[webknjaz]

FTR, I've left a comment over in the PR with an example of what I came up with in my projects: #124475 (review). Hopefully, that'll be useful.