Merge remote-tracking branch 'origin/pr/182'

* origin/pr/182:
  updater: cleanup - Make pacman cleanup work

Pull request description:

`pacman --noconfirm -Scc` defaults to No. So switch to `-Sc`.

Author: marmarek

vmupdate/agent/source/pacman/pacman_cli.py

@@ -72,7 +72,7 @@ def clean(self) -> int:
         Clean cache files of package manager.
         Should return 0 on success or EXIT.ERR_VM_CLEANUP otherwise.
         """
-        cmd = [self.package_manager, "-Scc"]  # consider -Sc
+        cmd = [self.package_manager, "--noconfirm", "-Sc"]
         result = self.run_cmd(cmd, realtime=False)
         return_code = EXIT.ERR_VM_CLEANUP if result.code != 0 else 0
         return return_code