Remove cron schedule from docker-publish.yml

Removed scheduled cron job from Docker publish workflow.

.github/workflows/docker-publish.yml

@@ -6,8 +6,6 @@ name: Docker
 # documentation.
 
 on:
-  schedule:
-    - cron: '45 15 * * *'
   push:
     branches: [ "main" ]
     # Publish semver tags as releases.