Set version to 'rolling' for Arch-based distributions

Co-authored-by: SomethingGeneric <[email protected]>

Author: Copilot

miniupdate/os_detector.py

@@ -209,6 +209,10 @@ def _parse_os_info(self, uname_info: Dict[str, str],
         # Clean up distribution name
         distribution = self._normalize_distribution_name(distribution)
 
+        # Set version for rolling release distributions
+        if distribution in ['arch', 'manjaro'] and version == 'unknown':
+            version = 'rolling'
+        
         return os_family, distribution, version
 
     def _normalize_distribution_name(self, distribution: str) -> str: