`e2e:test-product-analytics` trigger job fails when the source branch is from non-canonical GitLab project

Summary

e2e:test-product-analytics trigger job fails with "No permissions to trigger downstream pipeline" when the source branch is from non-canonical GitLab project.

Example pipeline: https://gitlab.com/gitlab-org/gitlab/-/pipelines/1424240710 MR for this pipeline: !163693 (merged)

Steps to reproduce

Create a fork of GitLab
Create a branch with changes that would run the e2e:test-product-analytics trigger job.
Create an MR and target canonical GitLab Master

What is the current bug behavior?

e2e:test-product-analytics trigger job fails with "No permissions to trigger downstream pipeline" when the source branch is from non-canonical GitLab project.

What is the expected correct behavior?

e2e:test-product-analytics trigger job should successfully run

Relevant logs and/or screenshots

Output of checks

Results of GitLab environment info

Expand for output related to GitLab environment info


(For installations with omnibus-gitlab package run and paste the output of:
`sudo gitlab-rake gitlab:env:info`)

(For installations from source run and paste the output of:
`sudo -u git -H bundle exec rake gitlab:env:info RAILS_ENV=production`)

Results of GitLab application Check

Expand for output related to the GitLab application check

(For installations with omnibus-gitlab package run and paste the output of:
sudo gitlab-rake gitlab:check SANITIZE=true)
(For installations from source run and paste the output of:
sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production SANITIZE=true)
(we will only investigate if the tests are passing)