fix: Restore minimal AdHoc module

gajim/common/modules/adhoc_commands.py

+# This file is part of Gajim.
+#
+# Gajim is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published
+# by the Free Software Foundation; version 3 only.
+#
+# Gajim is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Gajim. If not, see <http://www.gnu.org/licenses/>.
+
+from __future__ import annotations
+
+from gajim.common import types
+from gajim.common.modules.base import BaseModule
+
+
+class AdHocCommands(BaseModule):
+
+    _nbxmpp_extends = 'AdHoc'
+    _nbxmpp_methods = [
+        'request_command_list',
+        'execute_command',
+    ]
+
+    def __init__(self, con: types.Client) -> None:
+        BaseModule.__init__(self, con)