Exclude tags from running GitHub Actions workflows

[cosinekitty]

Add this to prevent tag pushes from running my workflow:

on:
  push:
    tags-ignore:
      - '**'

Full documentation at: https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions

[cosinekitty]

I tried the syntax above in SapphireTests, but it also excluded running the tests for that push, which is wrong! So I need to better understand how to fix this before doing anything else. I have reverted the attempt.