Creates a New Workflow for Adding Wiki Labels

[Burzah]

What Does This PR Do

This creates a new workflow that allows people designated to label a PR with Requires Wiki Update without needing to be a member of the repository. This can be done by an authorized user by using !wiki_label.

~~Additionally this PR adds @SynthTwo to the list of authorized users for this command.~~

This now uses a repository variable and will need to be setup accordingly.

Why It's Good For The Game

What is good for the code base is good for the game.

Images of changes

Testing

Created a separate fork of our repository. Created a dummy PR to test the function of the workflow. Tested new changes made during the course of this PR.

Additional thanks to @SynthTwo for helping to test this.

Changelog

NPFC

[SynthTwo]

THANK YOU BURZA <3