fixup! nsfarm/setup: implement updater setup

nsfarm/setup/updater.py

@@ -71,6 +71,10 @@ class Updater(_Setup):
         self._sh.run(f"rm -f '{self._fpath}'")
         pkgupdate(self._sh)
 
+    def execute(self) -> None:
+        """Execute pkgupdate and wait for completion."""
+        pkgupdate(self._sh)
+
     @classmethod
     def _2lua(cls, value: typing.Union[str, int, bool, dict]):
         """Converts limited Python types to Lua representation."""
@@ -105,10 +109,6 @@ class Updater(_Setup):
         """Add request to uninstall packages."""
         self._sh.run(f"echo 'Package(\"{name}\", {self._2lua(extra)})' >> '{self._fpath}'")
 
-    def execute(self) -> None:
-        """Execute pkgupdate and wait for completion."""
-        pkgupdate(self._sh)
-
 
 class Pkglist(_Setup):
     """Setup tool to install packages from given package list."""