dev: Don't run docker build on mrs as it will always fail

dev: Fixed remove-migration.ps1 script

.gitlab-ci.yml

@@ -123,6 +123,8 @@ publish-medusa-package:
  stage: publish-medusa-package
  allow_failure: true
  rules:
+   - if: '$CI_PIPELINE_SOURCE == "merge_request_event"'
+     when: never
    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH || $CI_COMMIT_TAG
  script:
    - LAST_TAG=$(git describe --tags --abbrev=0)