[ci] Cure bitrot

Optimistically, I'm going to say that that's that.

Fixes #6

Author: CodingCellist

.github/workflows/pelican.yml

@@ -108,8 +108,6 @@ jobs:
     concurrency:
       group: "pages"
       cancel-in-progress: false
-    # FIXME: remove when workflow is no longer bitrotted
-    if: false
     environment:
       name: github-pages
       url: ${{ steps.deployment.outputs.page_url }}