Change workflow branch from 'mp/docker_branch' to 'main'

Author: puehringer

.github/workflows/build-docker-artifacts.yml

@@ -45,7 +45,7 @@ concurrency:
   cancel-in-progress: true
 
 env:
-  WORKFLOW_BRANCH: "mp/docker_branch"
+  WORKFLOW_BRANCH: "main"
   PYTHON_BASE_IMAGE: "python:3.10.18-slim-bullseye"
   DATAVISYN_PYTHON_BASE_IMAGE: "188237246440.dkr.ecr.eu-central-1.amazonaws.com/datavisyn/base/python:main"
   NODE_BASE_IMAGE: "node:20.9-bullseye"