Optimize UpgradeSettings updateLegacyFolder to use FileAccess

[jan-vcapgemini]

IDEasy/cli/src/main/java/com/devonfw/tools/ide/commandlet/UpgradeSettingsCommandlet.java

Line 64 in 5c9c80b

Files.move(legacyFolder, newFolder, StandardCopyOption.REPLACE_EXISTING);

          Maybe check FileAccess and use this instead.

Originally posted by @jan-vcapgemini in #820 (comment)