fix converting files with unicode inner folders [12.1.2 regression] (#1492)

kcc.spec

@@ -8,7 +8,7 @@ a = Analysis(['kcc.py'],
              pathex=['.'],
              binaries=[],
              datas=[],
-             hiddenimports=['_cffi_backend'],
+             hiddenimports=['_cffi_backend', 'text_unidecode'],
              hookspath=[],
              runtime_hooks=[],
              excludes=['pkg_resources'],