fix: url and object splitting for local files#1007

lobis merged 11 commits intomainscikit-hep/uproot5:mainfrom

1006-file-object-separator-colon-parsing-pr-976-must-be-fixed-before-the-next-releasescikit-hep/uproot5:1006-file-object-separator-colon-parsing-pr-976-must-be-fixed-before-the-next-releaseCopy head branch name to clipboard