feat: add pinentry and gpgme to sys-pgp formula

GPGME can be relevant for client applications such as Thunderbird.
Pinentry can be relevant for the server side, but it is way less tested
in split-gpg2 and discouraged to be used.

For: https://github.com/ben-grande/qusal/issues/83

salt/sys-pgp/install-client-gpgme-python.sls

@@ -0,0 +1,30 @@
+{#
+SPDX-FileCopyrightText: 2025 Benjamin Grande M. S. <ben.grande.b@gmail.com>
+
+SPDX-License-Identifier: AGPL-3.0-or-later
+#}
+
+{% if grains['nodename'] != 'dom0' -%}
+
+include:
+  - utils.tools.common.update
+
+{% set pkg = {
+  'Debian': {
+    'pkg': ['python3-gpg'],
+  },
+  'RedHat': {
+    'pkg': ['python3-gpg'],
+  },
+}.get(grains.os_family) -%}
+
+"{{ slsdotpath }}-client-installed-os-specific-gpgme-python":
+  pkg.installed:
+    - require:
+      - sls: utils.tools.common.update
+    - install_recommends: False
+    - skip_suggestions: True
+    - setopt: "install_weak_deps=False"
+    - pkgs: {{ pkg.pkg|sequence|yaml }}
+
+{% endif -%}