[in_app_pur]: Bump org.json:json from 20230227 to 20230618 in /packages/in_app_purchase/in_app_purchase/example/android/app (#4244)

Bumps [org.json:json](https://github.com/douglascrockford/JSON-java) from 20230227 to 20230618.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/douglascrockford/JSON-java/releases">org.json:json's releases</a>.</em></p>
<blockquote>
<h2>20230618</h2>
<table>
<thead>
<tr>
<th>Pull Request</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="https://redirect.github.com/douglascrockford/JSON-java/issues/749">#749</a></td>
<td><a href="https://redirect.github.com/stleary/JSON-java/pull/749">Prep for release 20230618</a></td>
</tr>
<tr>
<td><a href="https://redirect.github.com/douglascrockford/JSON-java/issues/740">#740</a></td>
<td><a href="https://redirect.github.com/stleary/JSON-java/pull/734">Fixed Flaky Tests Caused by JSON permutations</a></td>
</tr>
<tr>
<td><a href="https://redirect.github.com/douglascrockford/JSON-java/issues/734">#734</a></td>
<td><a href="https://redirect.github.com/stleary/JSON-java/pull/734">Fixed Flaky Tests Caused by JSON permutations</a></td>
</tr>
<tr>
<td><a href="https://redirect.github.com/douglascrockford/JSON-java/issues/733">#733</a></td>
<td><a href="https://redirect.github.com/stleary/JSON-java/pull/733">JSONTokener implemented java.io.Closeable</a></td>
</tr>
<tr>
<td><a href="https://redirect.github.com/douglascrockford/JSON-java/issues/731">#731</a></td>
<td><a href="https://redirect.github.com/stleary/JSON-java/pull/731">Removing commented out code in JSONObject optDouble()</a></td>
</tr>
<tr>
<td><a href="https://redirect.github.com/douglascrockford/JSON-java/issues/729">#729</a></td>
<td><a href="https://redirect.github.com/stleary/JSON-java/pull/729">Refactor ParserConfiguration class hierarchy</a></td>
</tr>
</tbody>
</table>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/stleary/JSON-java/blob/master/docs/RELEASES.md">org.json:json's changelog</a>.</em></p>
<blockquote>
<p>20230618    Final release with Java 1.6 compatibility. Future releases will require Java 1.8 or greater.</p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li>See full diff in <a href="https://github.com/douglascrockford/JSON-java/commits">compare view</a></li>
</ul>
</details>
<br />

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packages/in_app_purchase/in_app_purchase/example/android/app/build.gradle

@@ -110,7 +110,7 @@ dependencies {
     implementation 'com.android.billingclient:billing:3.0.2'
     testImplementation 'junit:junit:4.13.2'
     testImplementation 'org.mockito:mockito-core:5.0.0'
-    testImplementation 'org.json:json:20230227'
+    testImplementation 'org.json:json:20230618'
     androidTestImplementation 'androidx.test:runner:1.1.1'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
 }