Align naming in Software Diagnostics cluster XML with the spec. (#24287)

* Align naming in Software Diagnostics cluster XML with the spec.

* Regenerate generated code.
diff --git a/examples/chef/devices/rootnode_fan_7N2TobIlOX.matter b/examples/chef/devices/rootnode_fan_7N2TobIlOX.matter
index 0da0377..38d0ae6 100644
--- a/examples/chef/devices/rootnode_fan_7N2TobIlOX.matter
+++ b/examples/chef/devices/rootnode_fan_7N2TobIlOX.matter
@@ -737,7 +737,7 @@
     kWaterMarks = 0x1;
   }
 
-  struct ThreadMetrics {
+  struct ThreadMetricsStruct {
     int64u id = 0;
     optional char_string<8> name = 1;
     optional int32u stackFreeCurrent = 2;
@@ -751,7 +751,7 @@
     optional OCTET_STRING faultRecording = 2;
   }
 
-  readonly attribute ThreadMetrics threadMetrics[] = 0;
+  readonly attribute ThreadMetricsStruct threadMetrics[] = 0;
   readonly attribute int64u currentHeapFree = 1;
   readonly attribute int64u currentHeapUsed = 2;
   readonly attribute int64u currentHeapHighWatermark = 3;