chore(deps): bump io.netty:netty-bom from 4.1.110.Final to 4.2.9.Final

Bumps [io.netty:netty-bom](https://github.com/netty/netty) from 4.1.110.Final to 4.2.9.Final.
- [Commits](netty/netty@netty-4.1.110.Final...netty-4.2.9.Final)

---
updated-dependencies:
- dependency-name: io.netty:netty-bom
  dependency-version: 4.2.9.Final
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

velocity.extension/build.gradle.kts

@@ -40,7 +40,7 @@ dependencies {
     implementation("com.viaversion:viarewind-common:4.0.13")
     implementation("com.viaversion:viaversion:5.7.0")
 
-    implementation(platform("io.netty:netty-bom:4.1.110.Final"))
+    implementation(platform("io.netty:netty-bom:4.2.9.Final"))
     implementation("io.netty:netty-buffer")
     implementation("io.netty:netty-codec")
     implementation("io.netty:netty-codec-http")