Disable decay for static objects

Signed-off-by: Rainer Kartmann <rainer.kartmann@kit.edu>

source/RobotAPI/libraries/armem_objects/server/instance/Decay.cpp

@@ -34,7 +34,7 @@ namespace armarx::armem::server::obj::instance
     {
         for (objpose::ObjectPose& pose : objectPoses)
         {
-            if (pose.attachment)
+            if (pose.attachment or pose.isStatic)
             {
                 pose.confidence = 1.0;
             }