Improve get-snapshots behaviour for unreadable repositories#128277

DaveCTurner wants to merge 2 commits intoelastic:mainelastic/elasticsearch:mainfrom

DaveCTurner:2025/05/21/get-snapshots-unavailable-repo-handlingDaveCTurner/elasticsearch:2025/05/21/get-snapshots-unavailable-repo-handlingCopy head branch name to clipboard