gnu: gstreamer: Update to 1.19.2.

* gnu/packages/gstreamer.scm (gstreamer): Update to 1.19.2.
[meson]: Use meson-0.55.
[phases]{disable-some-tests}: Delete phase.

gnu: gstreamer-docs: Update to 1.19.2.

* gnu/packages/gstreamer.scm (gstreamer-docs): Update to 1.19.2.  Remove
trailing #t.

gnu: python-sphinx: Update to 4.2.0.

* gnu/packages/sphinx.scm (python-sphinx): Update to 4.2.0.

gnu: python-sphinxcontrib-serializinghtml: Update to 1.1.5.

* gnu/packages/sphinx.scm (python-sphinxcontrib-serializinghtml): Update to 1.1.5.

gnu: python-sphinxcontrib-htmlhelp: Update to 2.0.0.

* gnu/packages/sphinx.scm (python-sphinxcontrib-htmlhelp): Update to 2.0.0.

Merge remote-tracking branch 'origin/master' into staging

With resolved conflicts in:
	gnu/packages/bittorrent.scm
	gnu/packages/databases.scm
	gnu/packages/geo.scm
	gnu/packages/gnupg.scm
	gnu/packages/gstreamer.scm
	gnu/packages/gtk.scm
	gnu/packages/linux.scm
	gnu/packages/python-xyz.scm
	gnu/packages/xorg.scm
	guix/build/qt-utils.scm

gnu: emacs-filladapt: Fix typo in description.

* gnu/packages/emacs-xyz.scm (emacs-filladapt)[description]:
Fix ‘funtions’ typo.

gnu: rtl8812au-aircrack-ng-linux-module: Inherit from rtl8821ce-linux-module.

* gnu/packages/linux.scm (rtl8812au-aircrack-ng-linux-module): Inherit
from the rtl8821ce-linux-module package and remove duplicate fields.

gnu: rtl8821ce-linux-module: Honour PARALLEL-BUILD?.

* gnu/packages/linux.scm (rtl8821ce-linux-module)[arguments]:
Spawn multiple build make jobs if requested.

gnu: rtl8821ce-linux-module: Prepare for cross-compilation.

* gnu/packages/linux.scm (rtl8821ce-linux-module)[arguments]:
Use CC-FOR-TARGET.

gnu: proot: Update to 5.2.0-alpha-0.a70023a and fix version string.

* gnu/packages/linux.scm (proot): Update to 5.2.0-alpha-0.a70023a.
[tests?]: Reinstate tests for the aarch64-linux architecture.
[phases]{patch-sources}: Reinstate the test-ssssssss.c test, fixed upstream.
Set the VERSION Make variable, which is normally derived from invoking git.
Delete the new test-docker.sh test file.  Delete the known-to-be-failing
test-cdd39012.sh and test-d92b57ca.sh test files.
{check}: No longer set the PROOT_NO_SECCOMP environment variable as the
upstream issue appears to have been resolved.
[native-inputs]: Use the current coreutils package.

gnu: Add guile-pipe.

* gnu/packages/guile-xyz.scm (guile-pipe): New variable.

Signed-off-by: Liliana Marie Prikler <liliana.prikler@gmail.com>

gnu: Add python-pytest-exploratory.

* gnu/packages/python-check.scm (python-pytest-exploratory): New variable.

gnu: emacs-treemacs: Update to 2.9.1.

* gnu/packages/emacs-xyz.scm (emacs-treemacs): Update to 2.9.1.

gnu: emacs-parseedn: Update to 1.0.4.

* gnu/packages/emacs-xyz.scm (emacs-parseedn): Update to 1.0.4.

gnu: emacs-parseclj: Update to 1.0.4.

* gnu/packages/emacs-xyz.scm (emacs-parseclj): Update to 1.0.4.

gnu: emacs-crdt: Update to 0.2.6.

* gnu/packages/emacs-xyz.scm (emacs-crdt): Update to 0.2.6.

gnu: emacs-counsel-etags: Update to 1.10.0.

* gnu/packages/emacs-xyz.scm (emacs-counsel-etags): Update to 1.10.0.

gnu: emacs-a: Update to 1.0.0.

* gnu/packages/emacs-xyz.scm (emacs-a): Update to 1.0.0.

gnu: emacs-org-contrib: Update description.

* gnu/packages/emacs-xyz.scm (emacs-org-contrib): Update description according
to new repository.