[NonGNU ELPA] Undo-Fu-Session version 0.4

[ELPA update]

Version 0.4 of package Undo-Fu-Session has just been released in NonGNU ELPA.
You can now find it in M-x list-packages RET.

Undo-Fu-Session describes itself as:

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  Persistent undo, available between sessions
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More at https://elpa.nongnu.org/nongnu/undo-fu-session.html

## Summary:

  This extension provides a way to use undo steps of

## Recent NEWS:


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Change Log
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- Version 0.4 (2023-01-07)

  - Rename ``global-undo-fu-session-mode`` to ``undo-fu-session-global-mode``.

- Version 0.3 (2022-07-08)

  - Support conversion of existing undo data to other formats via 
``undo-fu-session-compression-update``.
  - Support different compression formats (``bzip2``, ``gzip``, ``xz`` & 
``zstd``)
  - Set permissions on the directory only only be readable by the owner (to 
avoid potential security issues).
  - Disable ``global-undo-fu-session`` in ``special-mode`` and it's derived 
modes (such as ``package-menu-mode``).
  - Add ``undo-fu-session-ignore-encrypted-files`` to ignore encrypted files.
  - Fix bug when ``undo-fu-session-linear`` was enabled,
    causing an empty undo history to disable undo entirely on reload.

- Version 0.2 (2020-05-17)

  - Add ``undo-fu-session-linear`` to optionally write linear undo history.
  - Fix ``global-undo-fu-session`` activating with the mini-buffer.
  - Fix loading the undo session clearing the ``undo-equiv-table`` for other 
buffers.

- Version 0.1 (2020-01-27)

  Initial release.