fix: run should-update if available when checking for updates

usr/lib/akshara/utils/helpers.py

@@ -90,10 +90,21 @@ def is_already_latest() -> bool:
     if os.path.isfile("/usr/system.json"):
         with open("/usr/system.json") as system_json_file:
             contents = system_json_file.read().strip()
+            system_config = get_system_config()
             if (
-                json.dumps(get_system_config(), ensure_ascii=False).strip()
+                json.dumps(system_config, ensure_ascii=False).strip()
                 == contents.strip()
             ):
+                if isinstance(system_config["distro-config"].get("should-update"), str):
+                    return (
+                        subprocess.run(
+                            ["bash", "-s"],
+                            text=True,
+                            input=system_config["distro-config"]["should-update"],
+                        ).returncode
+                        != 0
+                    )
+                else:
                     return True
             else:
                 return False