Bump json in /examples/fabric-contract-example-maven (#301)

Bumps [json](https://github.com/douglascrockford/JSON-java) from 20180813 to 20230227.
- [Release notes](https://github.com/douglascrockford/JSON-java/releases)
- [Changelog](https://github.com/stleary/JSON-java/blob/master/docs/RELEASES.md)
- [Commits](https://github.com/douglascrockford/JSON-java/commits)

---
updated-dependencies:
- dependency-name: org.json:json
  dependency-type: direct:production
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

examples/fabric-contract-example-maven/pom.xml

@@ -99,7 +99,7 @@
 		<dependency>
 			<groupId>org.json</groupId>
 			<artifactId>json</artifactId>
-			<version>20180813</version>
+			<version>20230227</version>
 		</dependency>
 
 	</dependencies>