Fix detournavigator tests

d40c09c18c changed the logic in parallel with
15e8f0b53c making this check invalid.

apps/openmw_test_suite/detournavigator/navigator.cpp

@@ -1226,6 +1226,6 @@ namespace
 
         EXPECT_EQ(
             findPath(*mNavigator, agentBounds, mStepSize, mStart, mEnd, Flag_walk, mAreaCosts, mEndTolerance, mOut),
-            Status::StartPolygonNotFound);
+            Status::NavMeshNotFound);
     }
 }