fix: pass --timezone=off when executing commands in rootfs

usr/lib/akshara/classes/rootfs.py

@@ -1,6 +1,5 @@
 import os
 import subprocess
-from pathlib import Path
 
 
 class RootFS:
@@ -42,6 +41,7 @@ class RootFS:
                 "systemd-nspawn",
                 "--quiet",
                 "--pipe",
+                "--timezone=off",
                 *[f"--setenv={name}={val}" for name, val in self.env.items()],
                 "-D",
                 self.rootfs_path,