Hi, I have a few custom branches in my repository as below.

and here's the bitbucket-pipelines.yml code:
pipelines:
pull-requests:
'**':
- parallel:
- step: *runDeploymentValidation
custom:
deploy-to-sit:
- step: *deployToSit
deploy-2:
- step: *deploy2
deploy-3:
- step: *deploy3
run-script:
- variables:
- name: SCRIPTNAME
- name: ORGNAME
- step: *runApexScript
How can I restrict those pipelines so that in bitbucket I would be able to run them only from specific branches (e.g. dev, uat, prod)? Right now I can run those pipelines from all branches, even feature or bugfix branch as below.