update upstream version

Author: Redent0r

SPECS-EXTENDED/kata-containers-preview/kata-containers-preview.spec

@@ -1,7 +1,7 @@
 %global debug_package %{nil}
-# The upstream GitHub tag uses dot (e.g. 3.27.0.preview1) while RPM uses
+# The upstream GitHub tag uses dot (e.g. 3.27.0.preview2) while RPM uses
 # tilde notation for pre-release sorting.
-%global upstream_ver 3.27.0.preview1
+%global upstream_ver 3.27.0.preview2
 
 Name:           kata-containers-preview
 Version:        3.27.0~preview2