Removing "dependencyDashboardHeader":

General MR

Summary

Removing "dependencyDashboardHeader": to allow for RENOVATE_DEPENDENCY_DASHBOARD_HEADER: "- [ ] Follow steps in [package update docs](./docs/DEVELOPMENT_MAINTENANCE.md) to upgrade the package." in Pipeline template renovate.json

Relevant logs/screenshots

(Include any relevant logs/screenshots)

Linked Issue

issue

Upgrade Notices

N/A