Update metrics-core to 4.2.38 (#5895)

Author: clairemcginty

build.sbt

@@ -102,7 +102,7 @@ val kantanCsvVersion = "0.8.0"
 val kryoVersion = "4.0.3"
 val magnoliaVersion = "1.1.10"
 val magnolifyVersion = "0.9.4"
-val metricsVersion = "4.2.37"
+val metricsVersion = "4.2.38"
 val munitVersion = "1.2.1"
 val neo4jDriverVersion = "4.4.22"
 val ndArrayVersion = "0.3.3"