[fix] handle also IsADirectoryError as exception in case of WRITE_TMP_ON_DISK env

wrappers/fastapi_wrapper.py

@@ -213,7 +213,7 @@ if bool(write_tmp_on_disk):
         path_write_tmp_on_disk = pathlib.Path(write_tmp_on_disk)
         try:
             pathlib.Path.unlink(path_write_tmp_on_disk, missing_ok=True)
-        except PermissionError or OSError as err:
+        except PermissionError or OSError or IsADirectoryError as err:
             app_logger.error(f"{err} while removing old write_tmp_on_disk:{write_tmp_on_disk}.")
             app_logger.error(f"is file?{path_write_tmp_on_disk.is_file()}.")
             app_logger.error(f"is symlink?{path_write_tmp_on_disk.is_symlink()}.")