Add fixed Date and Time formats for CSV serializer

Author: Merlin Rabens

src/main/scala/com/intenthq/action_processor/integrations/serializations/csv/Csv.scala

@@ -26,10 +26,10 @@ object Csv {
   implicit val csvDouble: Csv[Double] = (a: Double) => Seq(a.toString)
   implicit val csvBigDecimal: Csv[BigDecimal] = (a: BigDecimal) => Seq(a.toString)
   implicit val csvBoolean: Csv[Boolean] = (a: Boolean) => Seq(a.toString)
-  implicit val csvLocalDate: Csv[LocalDate] = (a: LocalDate) => Seq(a.toString)
-  implicit val csvLocalTime: Csv[LocalTime] = (a: LocalTime) => Seq(a.toString)
+  implicit val csvLocalDate: Csv[LocalDate] = (a: LocalDate) => Seq(java.time.format.DateTimeFormatter.ofPattern("yyyy-MM-dd").format(a))
+  implicit val csvLocalTime: Csv[LocalTime] = (a: LocalTime) => Seq(java.time.format.DateTimeFormatter.ofPattern("HH:mm:ss").format(a))
   implicit val csvInstant: Csv[Instant] = (a: Instant) => Seq(a.toString)
-  implicit val csvLocalDateTime: Csv[LocalDateTime] = (a: LocalDateTime) => Seq(a.toString)
+  implicit val csvLocalDateTime: Csv[LocalDateTime] = (a: LocalDateTime) => Seq(java.time.format.DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss").format(a))
 
   implicit def deriveCsv[A]: Csv[A] = macro Magnolia.gen[A]
 }