Automated npm PRs don't run build actions

[laingsimon]

https://github.com/orgs/community/discussions/57484

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When you use the repository's GITHUB_TOKEN to perform tasks, events triggered by the GITHUB_TOKEN, with the exception of workflow_dispatch and repository_dispatch, will not create a new workflow run. This prevents you from accidentally creating recursive workflow runs. For example, if a workflow run pushes code using the repository's GITHUB_TOKEN, a new workflow will not run even when the repository contains a workflow configured to run when push events occur.

Commits pushed by a GitHub Actions workflow that uses the GITHUB_TOKEN do not trigger a GitHub Pages build.

https://docs.github.com/en/actions/security-for-github-actions/security-guides/automatic-token-authentication#using-the-github_token-in-a-workflow

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https://github.com/orgs/community/discussions/65321

peter-evans/create-pull-request#48

[laingsimon]

DEV workflow is triggered but for main rather than the automated/npm-update branch