add kotlinx.datetime in gradle script

Author: devcrocod

ggdsl-echarts/build.gradle.kts

@@ -10,13 +10,15 @@ repositories {
 
 val html_version: String by project
 val serialization_version: String by project
+val datetime_version: String by project
 
 dependencies {
+    api(project(":ggdsl-api"))
     implementation(kotlin("stdlib"))
     testImplementation(kotlin("test"))
+    implementation("org.jetbrains.kotlinx:kotlinx-datetime-jvm:$datetime_version")
     implementation("org.jetbrains.kotlinx:kotlinx-html-jvm:$html_version")
     implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:$serialization_version")
-    api(project(":ggdsl-api"))
 }
 
 tasks {