Pipeline triggering permissions without merge permission

I have a project that has triggers that are executed from another projects’ CI pipeline.
For that trigger to be executed, the user on the triggering project, needs to have merge permissions for that branch and I would like to avoid that.

Is there a way of allowing users to trigger pipelines without giving them merge permissions?

A snippet of the triggering proyect’s CI:

# Project 1
trigger:
  stage: deploy
  image: alpine:latest

  before_script:
    - apk add --upgrade curl
  script:
    - curl -X POST
      -F token=${CI_JOB_TOKEN}
      -F ref=master
      https://gitlab.com/api/v4/projects/${TF_PROJECT_ID}/trigger/pipeline

A snippet of the trigger

# Project 2
validate:
  stage: validate
  script:
    - env
  only:
    - pipelines
    - triggers