gnu: icedove: Update to 102.9.1 [fixes CVE-2023-28427].

* gnu/packages/gnuzilla.scm (%icedove-version): Update to 102.9.1.
(%icedove-build-id, thunderbird-comm-l10n): Update accordingly.

gnu: Add zsh-completions

* gnu/packages/shellutils.scm (zsh-completions): New variable.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu: Add zsh-history-substring-search

* gnu/packages/shellutils.scm (zsh-history-substring-search): New variable.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

services: pam-limits-service-type: Deprecate file-like object support in favour for lists as service value.

* doc/guix.texi (Base Services): Document it.
* gnu/local.mk: Register test.
* gnu/services/base.scm (pam-limits-service-type): Accept both lists and
file-like objects. Deprecate file-like object support.
* gnu/tests/pam.scm: New file.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

services: base: Deprecate 'pam-limits-service' procedure.

* doc/guix.texi (Base Services): Replace pam-limits-service with pam-limits-service-type.
* gnu/packages/benchmark.scm (python-locust)[description]: Update index anchor to manual.
* gnu/services/base.scm (pam-limits-service-type): Set default value.
(pam-limits-service): Deprecate procedure.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

system: Remove obsolete GUIX_LOCPATH workaround.

* gnu/system.scm (operating-system-environment-variables): Do not set GUIX_LOCPATH.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu: Add scilab.

* gnu/packages/maths.scm (scilab): New variable.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu: Add suitesparse-3.

* gnu/packages/maths.scm (suitesparse-3): New variable.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu: matio: Add header file.

* gnu/packages/maths.scm (matio):
  [arguments] (phases): Add phase install-matioConfig.h.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu: Add audmes.

* gnu/packages/engineering.scm (audmes): New variable.

Revert "gnu: network-manager: Update to 1.43.4."

This reverts commit 01984774a27f12991f109edabb5527f838557ccd.  It is
apparently a development snapshot, and while working great for the most part, it
caused issues with WPA2 Enterprise WiFi configuration in
nm-connection-editor (see: https://issues.guix.gnu.org/62496).

Reported-by: John Kehayias <john.kehayias@protonmail.com>

gnu: conan: Update to 2.0.2.

* gnu/packages/package-management.scm (conan): Update to 2.0.2.
[arguments]: Delete relax-requirements phase.  Update patch-paths phase.
Add new patch-hard-coded-GCC-references, use-current-cmake-for-tests and
configure-tests phases.  Update check phase.
[native-inputs]: Replace autoconf with autoconf-wrapper.  Add libtool.

gnu: conan: Use gexps and remove input labels.

* gnu/packages/package-management.scm (conan) [arguments]: Use gexps.  Use
search-input-file in patch-paths phase.
[native-inputs]: Remove labels.

gnu: r-mumin: Update to 1.47.5.

* gnu/packages/statistics.scm (r-mumin): Update to 1.47.5.
[propagated-inputs]: Add r-insight.

gnu: r-tclust: Update to 1.5-4.

* gnu/packages/statistics.scm (r-tclust): Update to 1.5-4.

gnu: r-car: Update to 3.1-2.

* gnu/packages/statistics.scm (r-car): Update to 3.1-2.

gnu: r-robustbase: Update to 0.95-1.

* gnu/packages/statistics.scm (r-robustbase): Update to 0.95-1.

gnu: r-hexbin: Update to 1.28.3.

* gnu/packages/statistics.scm (r-hexbin): Update to 1.28.3.

gnu: r-glmnet: Update to 4.1-7.

* gnu/packages/statistics.scm (r-glmnet): Update to 4.1-7.

gnu: r-segmented: Update to 1.6-3.

* gnu/packages/statistics.scm (r-segmented): Update to 1.6-3.