Bump netty-handler from 4.1.89.Final to 4.1.94.Final in /hadoop-project

Bumps [netty-handler](https://github.com/netty/netty) from 4.1.89.Final to 4.1.94.Final.
- [Commits](https://github.com/netty/netty/compare/netty-4.1.89.Final...netty-4.1.94.Final)

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

Signed-off-by: dependabot[bot] <support@github.com>

hadoop-project/pom.xml

@@ -139,7 +139,7 @@
     <jna.version>5.2.0</jna.version>
     <gson.version>2.9.0</gson.version>
     <metrics.version>3.2.4</metrics.version>
-    <netty4.version>4.1.89.Final</netty4.version>
+    <netty4.version>4.1.94.Final</netty4.version>
     <snappy-java.version>1.1.10.1</snappy-java.version>
     <lz4-java.version>1.7.1</lz4-java.version>