Bump dropwizard metrics-core for Spark 3 runner to match the version …

…used in Spark 3.1 (addresses apache#23728)

runners/spark/spark_runner.gradle

@@ -152,15 +152,16 @@ dependencies {
   implementation project(":sdks:java:fn-execution")
   implementation library.java.vendored_grpc_1_48_1
   implementation library.java.vendored_guava_26_0_jre
-  implementation "io.dropwizard.metrics:metrics-core:3.1.5" // version used by Spark 2.4
   spark.components.each { component ->
     provided "$component:$spark_version"
   }
   permitUnusedDeclared "org.apache.spark:spark-network-common_$spark_scala_version:$spark_version"
   if (project.property("spark_scala_version").equals("2.11")) {
+    implementation "io.dropwizard.metrics:metrics-core:3.1.5" // version used by Spark 2.4
     compileOnly "org.scala-lang:scala-library:2.11.12"
     runtimeOnly library.java.jackson_module_scala_2_11
   } else {
+    implementation "io.dropwizard.metrics:metrics-core:4.1.1" // version used by Spark 3.1
     compileOnly "org.scala-lang:scala-library:2.12.15"
     runtimeOnly library.java.jackson_module_scala_2_12
   }