doc: manual: Update TeX Live-related sections.

* doc/guix.texi (Invoking guix import): Mention "--recursive" option.
(Using TeX and LaTeX): Improve documentation of modular TeX Live.  Insist on
the incompatibility with TEXLIVE package, and expound part about collections
and schemes.  Also fix the call to `tlmgr', which does not need to happen from
a "guix shell" invocation.

Co-authored-by: Andreas Enge <andreas@enge.fr>

gnu: mumi: Update to 0.0.5-3.2453a5a.

* gnu/packages/mail.scm (mumi): Update to 0.0.5-3.2453a5a.

home: Add parcimonie service.

* gnu/home/services/gnupg.scm (home-parcimonie-service-type,
home-parcimonie-configuration): New variables.
* doc/guix.texi (GNU Privacy Guard): Document it.

gnu: cl-gobject-introspection: Update to 0.3-3.83beec4.

* gnu/packages/lisp-xyz.scm (sbcl-cl-gobject-introspection): Update to
  0.3-3.83beec4.

Signed-off-by: Guillaume Le Vaillant <glv@posteo.net>

gnu: cl-cl+ssl: Update to 0.0.0-6.17d5cdd.

* gnu/packages/lisp-xyz.scm (sbcl-cl+ssl): Update to 0.0.0-6.17d5cdd.

Signed-off-by: Guillaume Le Vaillant <glv@posteo.net>

gnu: nyxt: Update to 3.6.1.

* gnu/packages/web-browsers.scm (nyxt): Update to 3.6.1.

Signed-off-by: Guillaume Le Vaillant <glv@posteo.net>

gnu: cl-iolib: Update to 0.8.4-0.010b7a6.

* gnu/packages/lisp-xyz.scm (sbcl-iolib): Update to 0.8.4.0.010b7a6.
  [native-inputs]: Add pkg-config and sbcl-fiveam.

Signed-off-by: Guillaume Le Vaillant <glv@posteo.net>

gnu: avr-gcc: Avoid referencing gcc from the top level.

Fixes <https://issues.guix.gnu.org/65716>.

* gnu/packages/avr.scm (avr-gcc): Do not explicitly refer to 'gcc'.  The
default value of the argument uses the identifier-syntax trick to delay
evaluation of gcc.

gnu: Add python-metpy.

* gnu/packages/geo.scm (python-metpy): New variable.

Signed-off-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>

gnu: python-pint: Fix build.

* gnu/packages/python-xyz (python-pint)[build-system]: Switch to
pyproject-build-system.
[arguments]: Skip a failing test.
[native-inputs]: Sort alphabetically and add python-importlib-metadata.

Signed-off-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>

gnu: python-sparse: Update to 0.14.0.

* gnu/packages/python-xyz.scm (python-sparse): Update to 0.14.0.

Signed-off-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>

gnu: python-sparse: Fix build.

* gnu/packages/python-xyz.scm (python-sparse)[native-inputs]: Add
python-importlib-metadata.

Signed-off-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>

gnu: guile-email: Update to 0.3.1.

* gnu/packages/guile-xyz.scm (guile-email): Update to 0.3.1.

gnu: kio: Skip another test.

* gnu/packages/kde-frameworks.scm (kio)[arguments]: Adjust custom 'check
phase to skip a test which fails on aarch64-linux.

gnu: emacs-pcre2el: Update to 1.12.

* gnu/packages/emacs-xyz.scm (emacs-pcre2el): Update to 1.12.

gnu: emacs-org-contrib: Update to 0.4.2.

* gnu/packages/emacs-xyz.scm (emacs-org-contrib): Update to 0.4.2.

gnu: emacs-org: Update to 9.6.9.

* gnu/packages/emacs-xyz.scm (emacs-org): Update to 9.6.9.
[arguments]<#:phases>: Re-instate a previously skipped test.

gnu: emacs-popon: Update to 0.13.

* gnu/packages/emacs-xyz.scm (emacs-popon): Update to 0.13.

gnu: emacs-scpaste: Update to 0.7.0.

* gnu/packages/emacs-xyz.scm (emacs-scpaste): Update to 0.7.0.

gnu: emacs-seriestracker: Update to 1.3.1.

* gnu/packages/emacs-xyz.scm (emacs-seriestracker): Update to 1.3.1.