[Java][Microprofile] Fix #17526: enumOuterClass missing JSON-B (de)serializer (#18951)

* GH-17526/microprofile: Fix enumOuterClass missing JSON-B (de)serializer

* Add microprofile-rest-client-outer-enum to jdk17 samples workflow

* Regenerate samples

samples/client/petstore/java/microprofile-rest-client-outer-enum/docs/Cat.md

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+
+
+# Cat
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**id** | **Long** |  |  |
+|**name** | **String** |  |  |
+|**status** | **Status** |  |  |
+
+
+

samples/client/petstore/java/microprofile-rest-client-outer-enum/docs/DefaultApi.md

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+# DefaultApi
+
+All URIs are relative to *http://localhost*
+
+| Method | HTTP request | Description |
+|------------- | ------------- | -------------|
+| [**listCats**](DefaultApi.md#listCats) | **GET** /cats | List all cats |
+| [**listDogs**](DefaultApi.md#listDogs) | **GET** /dogs | List all dogs |
+
+
+
+## listCats
+
+> List<Cat> listCats()
+
+List all cats
+
+### Example
+
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.DefaultApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost");
+
+        DefaultApi apiInstance = new DefaultApi(defaultClient);
+        try {
+            List<Cat> result = apiInstance.listCats();
+            System.out.println(result);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling DefaultApi#listCats");
+            System.err.println("Status code: " + e.getCode());
+            System.err.println("Reason: " + e.getResponseBody());
+            System.err.println("Response headers: " + e.getResponseHeaders());
+            e.printStackTrace();
+        }
+    }
+}
+```
+
+### Parameters
+
+This endpoint does not need any parameter.
+
+### Return type
+
+[**List&lt;Cat&gt;**](Cat.md)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: Not defined
+- **Accept**: application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | A list of cats |  -  |
+
+
+## listDogs
+
+> List&lt;Dog&gt; listDogs()
+
+List all dogs
+
+### Example
+
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.DefaultApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost");
+
+        DefaultApi apiInstance = new DefaultApi(defaultClient);
+        try {
+            List<Dog> result = apiInstance.listDogs();
+            System.out.println(result);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling DefaultApi#listDogs");
+            System.err.println("Status code: " + e.getCode());
+            System.err.println("Reason: " + e.getResponseBody());
+            System.err.println("Response headers: " + e.getResponseHeaders());
+            e.printStackTrace();
+        }
+    }
+}
+```
+
+### Parameters
+
+This endpoint does not need any parameter.
+
+### Return type
+
+[**List&lt;Dog&gt;**](Dog.md)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: Not defined
+- **Accept**: application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | A list of dogs |  -  |
+

samples/client/petstore/java/microprofile-rest-client-outer-enum/docs/Dog.md

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+
+
+# Dog
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**id** | **Long** |  |  |
+|**name** | **String** |  |  |
+|**status** | **Status** |  |  |
+
+
+

samples/client/petstore/java/microprofile-rest-client-outer-enum/docs/Status.md

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+
+
+# Status
+
+## Enum
+
+
+* `AVAILABLE` (value: `"available"`)
+
+* `PENDING` (value: `"pending"`)
+
+* `SOLD` (value: `"sold"`)
+
+
+