Switch from Force Tags to Test Tags

Force Tags is deprecated in Robot 7.0 and will eventually
warn and then after that stop working. Test Tags performs
the same function per docs.

Change-Id: I7cf305754b247b995a05d8da3b9de9ed613ecae2
Signed-off-by: Matt Fischer <matthew.fischer@hpe.com>
diff --git a/ipmi/test_ipmi_chassis.robot b/ipmi/test_ipmi_chassis.robot
index 477be2a..2f0cf48 100644
--- a/ipmi/test_ipmi_chassis.robot
+++ b/ipmi/test_ipmi_chassis.robot
@@ -12,7 +12,7 @@
 Suite Teardown   Redfish.Logout
 Test Teardown    Test Teardown Execution
 
-Force Tags       IPMI_Chassis
+Test Tags       IPMI_Chassis
 
 *** Variables ***