Pin to Ubuntu 22 (#145)

Ubuntu 24 seems to have slightly different kerning / aliasing so we'll
need to update all out screenshots. In the meantime, pin to 22.

.github/workflows/netlify.yaml

@@ -9,7 +9,7 @@ on:
 jobs:
     deploy:
         if: github.event.workflow_run.conclusion != 'cancelled' && github.event.workflow_run.event == 'pull_request'
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-22.04
         environment: Netlify
         steps:
             - name: 📝 Create Deployment