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/extended/test_bios_update.robot b/extended/test_bios_update.robot
index 607b6c6..7649f6e 100644
--- a/extended/test_bios_update.robot
+++ b/extended/test_bios_update.robot
@@ -12,7 +12,7 @@
 
 Test Teardown           Test Teardown Execution
 
-Force Tags  BIOS_Code_Update
+Test Tags  BIOS_Code_Update
 
 *** Variables ***