fix(deps): update dependency io.netty:netty-bom to v4.2.1.final

Author: renovate[bot]

pom.xml

@@ -56,7 +56,7 @@
     <gatling.version>3.14.3</gatling.version>
     <gcp.sdk.version>5.6.1</gcp.sdk.version>
     <github.button.version>2.14.1</github.button.version>
-    <io.netty.version>4.1.118.Final</io.netty.version>
+    <io.netty.version>4.2.1.Final</io.netty.version>
     <java.version>23</java.version>
     <jquery.version>3.7.1</jquery.version>
     <jruby.version>9.4.9.0</jruby.version>