to validate and publish metrics, per https://mozilla.github.io/glean/book/user/adding-glean-to-your-project/enable-data-ingestion.html#validate-and-publish-metrics
> After your product has been enabled, you must submit commits to probe scraper to validate and publish metrics. Metrics will only be published from branches defined in probe scraper's repositories.yaml, or the Git default branch if not explicitly configured. This should happen on every CI run to the specified branches. Nightly jobs will then automatically add published metrics to the Glean Dictionary and other data platform tools.
* Disable run-ui in build-contributor-pr workflow
Unfortunately the problem with INSTALL_FAILED_INSUFFICIENT_STORAGE is still showcasing itself on v2.21.0 – I'm not aware of any workaround at this moment in time, so I'm disabling this step of the workflow again.
* Update build-contributor-pr.yml
* Fixes#11427 - Rename master branch to main (Automation/TC)
* Fixes#11427 - Rename master branch to main (GitHub Workflows)
* Fixes#11427 - Rename master branch to main (GitHub Workflows)
* Fixes#11427 - Rename master branch to main (GitHub Issue Templates)
* Fixes#11427 - Rename master branch to main (Jenkins)
* Fixes#11427 - Rename master branch to main (README & Documentation)
* Fixes#11427 - Rename master branch to main (Jenkins)
* Fixes#11427 - Rename master branch to main (Random)
