chore: Use the recommended function to get serializers for a type

The function's docs say: "This overload works with full type information,
including type arguments and nullability, and is a recommended way to
retrieve a serializer."

Signed-off-by: Sebastian Schuberth <sebastian@doubleopen.org>

plugins/package-managers/bower/src/main/kotlin/Model.kt

@@ -21,13 +21,13 @@ package org.ossreviewtoolkit.plugins.packagemanagers.bower
 
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
-import kotlinx.serialization.builtins.ListSerializer
 import kotlinx.serialization.json.Json
 import kotlinx.serialization.json.JsonArray
 import kotlinx.serialization.json.JsonElement
 import kotlinx.serialization.json.JsonObject
 import kotlinx.serialization.json.JsonTransformingSerializer
 import kotlinx.serialization.json.jsonArray
+import kotlinx.serialization.serializer
 
 import org.ossreviewtoolkit.plugins.packagemanagers.bower.PackageMeta.Author
 
@@ -98,7 +98,7 @@ internal fun parsePackageInfoJson(json: String): PackageInfo = JSON.decodeFromSt
  * serializer then can be simplified into a single item deserializer. See also
  * https://github.com/Kotlin/kotlinx.serialization/issues/1169#issuecomment-2083213759.
  */
-private object AuthorListSerializer : JsonTransformingSerializer<List<Author>>(ListSerializer(Author.serializer())) {
+private object AuthorListSerializer : JsonTransformingSerializer<List<Author>>(serializer<List<Author>>()) {
     override fun transformDeserialize(element: JsonElement): JsonElement =
         JsonArray(
             element.jsonArray.map { item ->

plugins/package-managers/cocoapods/src/main/kotlin/Podspec.kt

@@ -20,13 +20,13 @@
 package org.ossreviewtoolkit.plugins.packagemanagers.cocoapods
 
 import kotlinx.serialization.Serializable
-import kotlinx.serialization.builtins.serializer
 import kotlinx.serialization.json.Json
 import kotlinx.serialization.json.JsonElement
 import kotlinx.serialization.json.JsonObject
 import kotlinx.serialization.json.JsonPrimitive
 import kotlinx.serialization.json.JsonTransformingSerializer
 import kotlinx.serialization.json.jsonPrimitive
+import kotlinx.serialization.serializer
 
 @Serializable
 internal data class Podspec(
@@ -71,7 +71,7 @@ internal fun String.parsePodspec(): Podspec = JSON.decodeFromString<Podspec>(thi
  * 1. https://github.com/CocoaPods/Specs/blob/f75c24e7e9df1dac6ffa410a6fb30f01e026d4d6/Specs/8/5/e/SocketIOKit/2.0.1/SocketIOKit.podspec.json#L6-L9
  * 2. https://github.com/CocoaPods/Specs/blob/f75c24e7e9df1dac6ffa410a6fb30f01e026d4d6/Specs/8/5/e/FirebaseObjects/0.0.1/FirebaseObjects.podspec.json#L6
  */
-private object LicenseSerializer : JsonTransformingSerializer<String>(String.serializer()) {
+private object LicenseSerializer : JsonTransformingSerializer<String>(serializer<String>()) {
     override fun transformDeserialize(element: JsonElement): JsonElement =
         if (element is JsonObject) {
             element["type"]?.jsonPrimitive ?: JsonPrimitive("")

plugins/scanners/scancode/src/main/kotlin/ScanCodeResultModel.kt

@@ -20,11 +20,10 @@
 package org.ossreviewtoolkit.plugins.scanners.scancode
 
 import kotlinx.serialization.Serializable
-import kotlinx.serialization.builtins.ListSerializer
-import kotlinx.serialization.builtins.serializer
 import kotlinx.serialization.json.JsonArray
 import kotlinx.serialization.json.JsonElement
 import kotlinx.serialization.json.JsonTransformingSerializer
+import kotlinx.serialization.serializer
 
 import org.ossreviewtoolkit.utils.spdx.SpdxConstants
 import org.ossreviewtoolkit.utils.spdx.SpdxExpression
@@ -205,7 +204,7 @@ data class LicenseReference(
  * A serializer that wraps an old primitive input option from ScanCode 3 into an array like it is for recent ScanCode
  * versions. Note that the input option format changed before the output format version property was introduced.
  */
-private object InputListSerializer : JsonTransformingSerializer<List<String>>(ListSerializer(String.serializer())) {
+private object InputListSerializer : JsonTransformingSerializer<List<String>>(serializer<List<String>>()) {
     override fun transformDeserialize(element: JsonElement): JsonElement =
         if (element !is JsonArray) JsonArray(listOf(element)) else element
 }