Resolve discussion comments.

app/src/main/java/ru/terrakok/gitlabclient/model/data/server/deserializer/LocalDateDeserializer.kt

@@ -12,11 +12,11 @@ import java.lang.reflect.Type
  */
 class LocalDateDeserializer : JsonDeserializer<LocalDate> {
 
+    private val dateTimeFormatter = DateTimeFormatter.ofPattern("yyyy-MM-dd")
+
     override fun deserialize(
         json: JsonElement,
         type: Type,
         jsonDeserializationContext: JsonDeserializationContext
-    ): LocalDate {
-        return LocalDate.parse(json.asJsonPrimitive.asString, DateTimeFormatter.ofPattern("yyyy-MM-dd"))
-    }
+    ): LocalDate = LocalDate.parse(json.asJsonPrimitive.asString, dateTimeFormatter)
 }
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app/src/main/java/ru/terrakok/gitlabclient/model/data/server/deserializer/OffsetDateTimeDeserializer.kt

@@ -9,14 +9,11 @@ import java.lang.reflect.Type
 
 class OffsetDateTimeDeserializer : JsonDeserializer<OffsetDateTime> {
 
+    private val dateTimeFormatter = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss.SSSX")
+
     override fun deserialize(
         json: JsonElement,
         typeOfT: Type,
         context: JsonDeserializationContext?
-    ): OffsetDateTime {
-        return OffsetDateTime.parse(
-            json.asJsonPrimitive.asString,
-            DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss.SSSX")
-        )
-    }
+    ): OffsetDateTime = OffsetDateTime.parse(json.asJsonPrimitive.asString, dateTimeFormatter)
 }
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