Update Kotlin and remove workaround

app/build.gradle.kts

@@ -176,7 +176,6 @@ android {
 
 composeCompiler {
     enableNonSkippingGroupOptimization = true
-    enableStrongSkippingMode = true
 }
 
 androidComponents {

app/src/main/kotlin/com/hippo/ehviewer/spider/ComicInfo.kt

@@ -15,7 +15,6 @@ import kotlinx.serialization.descriptors.PrimitiveSerialDescriptor
 import kotlinx.serialization.encoding.Decoder
 import kotlinx.serialization.encoding.Encoder
 import nl.adaptivity.xmlutil.XmlDeclMode
-import nl.adaptivity.xmlutil.XmlUtilInternal
 import nl.adaptivity.xmlutil.core.XmlVersion
 import nl.adaptivity.xmlutil.newWriter
 import nl.adaptivity.xmlutil.serialization.XML
@@ -26,8 +25,6 @@ import okio.Path
 const val COMIC_INFO_FILE = "ComicInfo.xml"
 private const val TAG_ORIGINAL = "original"
 
-// Workaround for https://youtrack.jetbrains.com/issue/KT-69182
-@OptIn(XmlUtilInternal::class)
 private val xml = XML {
     recommended {
         ignoreUnknownChildren()

gradle/libs.versions.toml

@@ -19,11 +19,11 @@ arrow = "1.2.4"
 coil = "3.0.0-alpha09"
 compose-bom = "2024.07.00-alpha02"
 compose-destinations = "2.1.0-beta11"
-kotlin = "2.0.0"
+kotlin = "2.0.20-RC"
 kotlinx-coroutines = "1.8.1"
 kotlinx-datetime = "0.6.0"
 kotlinx-serialization = "1.7.1"
-ksp = "2.0.0-1.0.24"
+ksp = "2.0.20-RC-1.0.24"
 ktor = "3.0.0-beta-1"
 okio = "3.9.0"
 splitties = "3.0.0"