[rush-lib] Add async APIs for disk-touching methods in PackageJsonEditor, CommonVersionsConfiguration, and VersionPolicy - #5724

[rush-lib] Add async APIs for disk-touching methods in PackageJsonEditor, CommonVersionsConfiguration, and VersionPolicy#5724

Ian Clanton-Thuon (iclanton) merged 5 commits into

microsoft:mainmicrosoft/rushstack:mainfrom

iclanton:rework-PackageJsonEditoriclanton/rushstack:rework-PackageJsonEditorCopy head branch name to clipboard