ci(docker.yml): remove branch-specific trigger for Docker workflow

Remove the branch-specific trigger for the Docker Build & Deploy
workflow to ensure that the workflow runs on all branches when a
tag is pushed. This change allows for more flexibility in the
workflow execution, ensuring that Docker images are built and
deployed for any branch as long as a version tag is present.

Author: kzndotsh

.github/workflows/docker.yml

@@ -1,8 +1,6 @@
 name: Docker Build & Deploy
 on:
   push:
-    branches:
-      - main
     tags:
       - v*
   pull_request: