Bump io.netty:netty-example from 4.2.1.Final to 4.2.2.Final

Bumps [io.netty:netty-example](https://github.com/netty/netty) from 4.2.1.Final to 4.2.2.Final.
- [Commits](netty/netty@netty-4.2.1.Final...netty-4.2.2.Final)

---
updated-dependencies:
- dependency-name: io.netty:netty-example
  dependency-version: 4.2.2.Final
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

quickfixj-core/pom.xml

@@ -120,7 +120,7 @@
 		<dependency>
 			<groupId>io.netty</groupId>
 			<artifactId>netty-example</artifactId>
-			<version>4.2.1.Final</version>
+			<version>4.2.2.Final</version>
 			<scope>test</scope>
 		</dependency>
 		<dependency>