refactor: streamline container setup and dependencies

- Remove `xz-utils` from initial package install
- Remove password/secret check in `obj_init`
- Add on-demand `crun` installation during container create
- Import `herorunner_installer` for `crun` setup

lib/installers/virt/herorunner/herorunner_actions.v

@@ -23,9 +23,7 @@ fn upload() ! {
 
 fn install() ! {
 	console.print_header('install herorunner')
-	osal.package_install('
-		xz-utils
-	   crun')!
+	osal.package_install('crun')!
 
 	// osal.exec(
 	// 	cmd:    '