fix(deps): update dependency io.netty:netty-bom to v4.1.115.final (#6872)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

dependencyManagement/build.gradle.kts

@@ -15,7 +15,7 @@ val DEPENDENCY_BOMS = listOf(
   "com.squareup.okhttp3:okhttp-bom:4.12.0",
   "com.squareup.okio:okio-bom:3.9.1", // applies to transitive dependencies of okhttp
   "io.grpc:grpc-bom:1.68.1",
-  "io.netty:netty-bom:4.1.114.Final",
+  "io.netty:netty-bom:4.1.115.Final",
   "io.zipkin.brave:brave-bom:6.0.3",
   "io.zipkin.reporter2:zipkin-reporter-bom:3.4.2",
   "org.assertj:assertj-bom:3.26.3",