comms/gnuradio: Update to 3.8.4

• Removed guile as it is not needed

(From CHANGELOG.md)

All notable changes to GNU Radio will be documented in this file.

The format is based on Keep a Changelog
and this project adheres to Semantic Versioning,
starting with version 3.7.12.0.

Older Logs can be found in docs/RELEASE-NOTES-*.

API is compatible with C++ code written against previous v3.8 releases.

ABI (link time) compatibility is not guaranteed. Out-of-tree C++ code
linked to previous v3.8 releases should be rebuilt against this version.

• Fix drag and drop issue with Quartz
• Fix desync when dragging block
• Update disabled blocks if they depend on others
• Allow short and byte as valid types in an enum
• Fix evaluation of interdependent variables

• Set VERSION_PATH to 0 in new modules, instead of using GIT rev
• For Python3, return correct exeption ModuleNotFoundError instead of ImportError

• New Matrix Interleaver block

• Fix "hide" expressions in yml files

• Remove unused msg output port from Chunks To Symbols block yml

• Add "shift" parameter to Log Power FFT

• Fix: tags on the last sample were not shown

• Fix: U and V channels were reversed on sink blocks

At LEAST the following authors contributed to this release.

• Adrien Michel <adriengit@users.noreply.github.com>
• David Winter <david.winter@analog.com>
• Emmanuel Blot <emmanuel.blot@free.fr>
• Håkon Vågsether <hauk142@gmail.com>
• Jared Dulmage <jared.dulmage@caliola.com>
• Jason Uher <jason.uher@jhuapl.edu>
• Jeff Long <willcode4@gmail.com>
• Marc L <marcll@vt.edu>
• Marcus Müller <mmueller@gnuradio.org>
• Martin Braun <martin@gnuradio.org>
• Ron Economos <w6rz@comcast.net>
• Volker Schroer

(cherry picked from commit 4c39934a15c55ce105e8d5de8e164c8906946fd5)