coverage: Add tests for correct update of the exists cache for IFileInfo and IDirectoryInfo#313

vbreuss merged 3 commits intomainTestably/Testably.Abstractions:mainfrom

topic/vb/test-refresh-cache-also-for-other-itemsTestably/Testably.Abstractions:topic/vb/test-refresh-cache-also-for-other-itemsCopy head branch name to clipboard