Closes: https://github.com/fleetdm/confidential/issues/9378 Changes: - Added support for `onTargetEarnings` in open-positons.yml - Updated the build-static-content script to validate `onTargetEarnings` values, and to replace the default compensation range on the page template with an `onTargetEarnings` value if one is provided. - Updated the "Creating a new position" section of the leadership handbook to document the new key in the open positions yaml