Bump io.netty:netty in /providers/netty3

Bumps [io.netty:netty](https://github.com/netty/netty) from 3.10.0.Final to 3.10.3.Final.
- [Commits](netty/netty@netty-3.10.0.Final...netty-3.10.3.Final)

---
updated-dependencies:
- dependency-name: io.netty:netty
  dependency-type: direct:production
...

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

Author: dependabot[bot]

providers/netty3/pom.xml

@@ -16,7 +16,7 @@
 		<dependency>
 			<groupId>io.netty</groupId>
 			<artifactId>netty</artifactId>
-			<version>3.10.0.Final</version>
+			<version>3.10.3.Final</version>
 		</dependency>
 		<dependency>
 			<groupId>org.asynchttpclient</groupId>