Bump io.netty:netty-handler from 4.2.11.Final to 4.2.12.Final

Bumps [io.netty:netty-handler](https://github.com/netty/netty) from 4.2.11.Final to 4.2.12.Final.
- [Release notes](https://github.com/netty/netty/releases)
- [Commits](netty/netty@netty-4.2.11.Final...netty-4.2.12.Final)

---
updated-dependencies:
- dependency-name: io.netty:netty-handler
  dependency-version: 4.2.12.Final
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

build.gradle

@@ -22,7 +22,7 @@ repositories {
 dependencies {
     compileOnly "com.viaversion:viaversion-common:5.7.2"
     compileOnly "com.google.guava:guava:33.5.0-jre"
-    compileOnly "io.netty:netty-handler:4.2.11.Final"
+    compileOnly "io.netty:netty-handler:4.2.12.Final"
 
     api("com.seedfinding:mc_biome:1.171.1") {
         transitive = false