[release/6.0-staging] Set assets manifest metadata for assets that get shipped with .NET release#98991

ViktorHofer merged 2 commits intodotnet:release/6.0-stagingdotnet/runtime:release/6.0-stagingfrom

MilenaHristova:backport-pr-98665-and-98824MilenaHristova/runtime:backport-pr-98665-and-98824Copy head branch name to clipboard