feat: Add support for Hikari DataSource properties (#224)

Author: jakubjanecek

doobie-hikari/src/main/scala/com/avast/sst/doobie/DoobieHikariConfig.scala

@@ -25,5 +25,6 @@ final case class DoobieHikariConfig(
     poolName: Option[String] = None,
     registerMBeans: Boolean = false,
     validationTimeout: Option[FiniteDuration] = None,
-    transactionIsolation: Option[TransactionIsolation] = None
+    transactionIsolation: Option[TransactionIsolation] = None,
+    dataSourceProperties: Map[String, String] = Map.empty
 )

doobie-hikari/src/main/scala/com/avast/sst/doobie/DoobieHikariModule.scala

@@ -1,5 +1,6 @@
 package com.avast.sst.doobie
 
+import java.util.Properties
 import java.util.concurrent.{ScheduledExecutorService, ThreadFactory}
 
 import cats.Show
@@ -11,6 +12,7 @@ import doobie.enum.TransactionIsolation
 import doobie.hikari.HikariTransactor
 
 import scala.concurrent.ExecutionContext
+import scala.jdk.CollectionConverters._
 
 object DoobieHikariModule {
 
@@ -60,6 +62,9 @@ object DoobieHikariModule {
       c.setAllowPoolSuspension(config.allowPoolSuspension)
       c.setIsolateInternalQueries(config.isolateInternalQueries)
       c.setRegisterMbeans(config.registerMBeans)
+      val dataSourceProperties = new Properties()
+      dataSourceProperties.putAll(config.dataSourceProperties.asJava)
+      c.setDataSourceProperties(dataSourceProperties)
 
       config.leakDetectionThreshold.map(_.toMillis).foreach(c.setLeakDetectionThreshold)
       config.initializationFailTimeout.map(_.toMillis).foreach(c.setInitializationFailTimeout)