DirectoryNotEmptyException when restoring main folder

[hilel14]

`

java.nio.file.DirectoryNotEmptyException: .\path\to\some\folder
at sun.nio.fs.WindowsFileSystemProvider.implDelete(WindowsFileSystemProvider.java:266)
at sun.nio.fs.AbstractFileSystemProvider.delete(AbstractFileSystemProvider.java:103)
at java.nio.file.Files.delete(Files.java:1126)
at org.hilel14.iceberg.Snapshot$Cleaner.postVisitDirectory(Snapshot.java:83)
at org.hilel14.iceberg.Snapshot$Cleaner.postVisitDirectory(Snapshot.java:57)
at java.nio.file.Files.walkFileTree(Files.java:2688)
at java.nio.file.Files.walkFileTree(Files.java:2742)
at org.hilel14.iceberg.Snapshot.restore(Snapshot.java:54)
at org.hilel14.iceberg.Workflow.restore(Workflow.java:142)
at org.hilel14.iceberg.cli.Restore.main(Restore.java:33)
`