Release action: replace create with push

I remember Vox Pupuli had some issues with `on: create`. I didn't find
that in the docs: https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions
And Vox Pupuli doesn't use it anymore. This might fix our odd CI runs
for the release action triggered by dependabot:
https://github.com/Libera-Chat/curite/actions/runs/9781239498

.github/workflows/release.yml

@@ -1,9 +1,9 @@
 name: Release
 
 on:
-  create:
+  push:
     tags:
-      - v*
+      - 'v*'
 
 jobs:
   release: