configure tmt to provision virtual guest

Author: archanaserver

plans/rex-uptime.fmf

@@ -1,4 +1,9 @@
 summary: Run uptime command via remote execution
+discover:
+  how: fmf
+  directory: /tests
 execute:
   how: tmt
-  test: rex-uptime
+provision:
+  how: virtual
+  image: centos-stream-9