feat: add pose_instability_detector to diagnostic_aggregator (autowar…

…efoundation#5935)

Signed-off-by: tomoya.kimura <tomoya.kimura@tier4.jp>

system/system_error_monitor/config/diagnostic_aggregator/localization.param.yaml

@@ -30,6 +30,12 @@
               contains: ["localization: localization_error_monitor"]
               timeout: 1.0
 
+            localization_stability:
+              type: diagnostic_aggregator/GenericAnalyzer
+              path: localization_stability
+              contains: ["localization: pose_instability_detector"]
+              timeout: 1.0
+
             # This diagnostic should ideally be avoided in terms of Fault Tree Analysis (FTA) compatibility.
             # However, we may need this since the localization accuracy is still not reliable enough and may produce
             # false positives. Thus, NOTE that this diagnostic should be removed in the future when the localization accuracy