Update netty-codec, netty-codec-http, ... to 4.2.8.Final

Author: gu-scala-steward-public-repos[bot]

build.sbt

@@ -49,7 +49,7 @@ val jacksonCbor: String = "2.19.1"
 val jacksonScalaModule: String = "2.19.1"
 val simpleConfigurationVersion: String = "1.5.7"
 val googleOAuthClient: String = "1.39.0"
-val nettyVersion: String = "4.2.2.Final"
+val nettyVersion: String = "4.2.8.Final"
 val slf4jVersion: String = "1.7.36"
 val logbackVersion: String = "1.5.18"