Added help message to all cli commands

src/cpl_cli/command/update_service.py

@@ -1,6 +1,7 @@
 import json
 import os
 import subprocess
+import textwrap
 
 from cpl.configuration.configuration_abc import ConfigurationABC
 from cpl.console.console import Console
@@ -38,6 +39,11 @@ class UpdateService(CommandABC):
         self._project_settings = project_settings
         self._cli_settings = cli_settings
 
+    @property
+    def help_message(self) -> str:
+        return textwrap.dedent("""\
+        """)
+
     def _collect_project_dependencies(self) -> list[tuple]:
         """
         Collects project dependencies