chore(deps): Bump io.netty:netty-bom from 4.2.11.Final to 4.2.12.Final in /pbj-core/hiero-dependency-versions (#764)

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pbj-core/hiero-dependency-versions/build.gradle.kts

@@ -9,7 +9,7 @@ val protobuf = "4.34.1"
 val junit5 = "6.0.3"
 val mockito = "5.23.0"
 
-dependencies { api(platform("io.netty:netty-bom:4.2.11.Final")) }
+dependencies { api(platform("io.netty:netty-bom:4.2.12.Final")) }
 
 dependencies.constraints {
     api("org.antlr:antlr4-runtime:$antlr") { because("org.antlr.antlr4.runtime") }