Bump netty.version from 4.1.65.Final to 4.1.73.Final

Bumps `netty.version` from 4.1.65.Final to 4.1.73.Final.

Updates `netty-handler` from 4.1.65.Final to 4.1.73.Final
- [Release notes](https://github.com/netty/netty/releases)
- [Commits](netty/netty@netty-4.1.65.Final...netty-4.1.73.Final)

Updates `netty-codec-http` from 4.1.65.Final to 4.1.73.Final
- [Release notes](https://github.com/netty/netty/releases)
- [Commits](netty/netty@netty-4.1.65.Final...netty-4.1.73.Final)

---
updated-dependencies:
- dependency-name: io.netty:netty-handler
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: io.netty:netty-codec-http
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

pom.xml

@@ -84,7 +84,7 @@
     </dependencyManagement>
 
     <properties>
-        <netty.version>4.1.72.Final</netty.version>
+        <netty.version>4.1.73.Final</netty.version>
         <reactive-streams.version>1.0.3</reactive-streams.version>
         <akka-stream.version>2.6.18</akka-stream.version>
         <maven-bundle-plugin.version>5.1.4</maven-bundle-plugin.version>