Re-add the kotlinx-serialization plugin to the error-support crate. (#7125)

Author: mhammond

components/support/error/android/build.gradle

@@ -16,12 +16,18 @@ buildscript {
             classpath libs.mozilla.glean.gradle.plugin
         }
     }
+
+    dependencies {
+        classpath libs.kotlin.serialization
+    }
 }
 
 plugins {
     alias libs.plugins.python.envs.plugin
 }
 
+apply plugin: 'kotlinx-serialization'
+
 apply from: "$appServicesRootDir/build-scripts/component-common.gradle"
 apply from: "$appServicesRootDir/publish.gradle"
 

gradle/libs.versions.toml

@@ -61,6 +61,7 @@ protobuf-compiler = { group = "com.google.protobuf", name = "protoc", version.re
 kotlin-gradle-plugin = { group = "org.jetbrains.kotlin", name = "kotlin-gradle-plugin", version.ref = "kotlin" }
 kotlinx-coroutines = { group = "org.jetbrains.kotlinx", name = "kotlinx-coroutines-android", version.ref = "coroutines" }
 kotlinx-serialization-json = { group = "org.jetbrains.kotlinx", name = "kotlinx-serialization-json", version.ref = "kotlinx-serialization" }
+kotlin-serialization = { group = "org.jetbrains.kotlin.plugin.serialization", name = "org.jetbrains.kotlin.plugin.serialization.gradle.plugin", version.ref = "kotlin" }
 
 # Mozilla
 mozilla-concept-fetch = { group = "org.mozilla.components", name = "concept-fetch", version.ref = "android-components" }