test: fix: serialization of additionalProperties changed

After new changes, additionalProperties fields are initialized
as LinkedHashMap. Since order of insertion is preserved,
test assertions should validate JSON output properly.

Author: manusa

kubernetes-client/src/test/java/io/fabric8/kubernetes/client/utils/SerializationAdditionalPropertiesTest.java

@@ -132,8 +132,8 @@ void marshalWithAdditionalPropertiesOverridingFields() {
       .withNewMetadata().withName("name").addToAnnotations("key", "value").endMetadata()
       .withImmutable(true)
       .build();
-    configMap.getAdditionalProperties().put("unknownField", "unknownValue");
     configMap.getAdditionalProperties().put("immutable", "${immutable}");
+    configMap.getAdditionalProperties().put("unknownField", "unknownValue");
     configMap.getMetadata().getAdditionalProperties().put("annotations", "${annotations}");
     // When
     final String result = Serialization.asJson(configMap);

kubernetes-client/src/test/java/io/fabric8/kubernetes/client/utils/serialization/UnmatchedFieldTypeModuleTest.java

@@ -155,8 +155,8 @@ void writeValueAsStringWithAdditionalPropertiesOverridingFields() throws JsonPro
       .withNewMetadata().withName("name").addToAnnotations("key", "ignored").addToLabels("lKey", "value").endMetadata()
       .withImmutable(true)
       .build();
-    configMap.getAdditionalProperties().put("unknownField", "unknownValue");
     configMap.getAdditionalProperties().put("immutable", "${immutable}");
+    configMap.getAdditionalProperties().put("unknownField", "unknownValue");
     configMap.getMetadata().getAdditionalProperties().put("annotations", "${annotations}");
     // When
     final String result = objectMapper.writeValueAsString(configMap);