Fix: typo in integration test message

Author: ipspace

tests/integration/isis/12-passive.yml

@@ -1,6 +1,6 @@
 ---
 message: |
-  This lab tests whether the OSPF interfaces on device under test are correctly
+  This lab tests whether the IS-IS interfaces on device under test are correctly
   configured as passive interfaces.
 
 defaults.sources.extra: [ ../wait_times.yml, ../warnings.yml ]