Avoid cross compiling different yaml loading logic

Instead, create a shim for standard convert utilities.

src/main/scala-2.12/org/uaparser/scala/scala.scala

@@ -0,0 +1,7 @@
+package org.uaparser
+
+package object scala {
+  object jdk {
+    val CollectionConverters = _root_.scala.collection.JavaConverters
+  }
+}

src/main/scala-2.13/org/uaparser/scala/scala.scala

@@ -0,0 +1,7 @@
+package org.uaparser
+
+package object scala {
+  object jdk {
+    val CollectionConverters = _root_.scala.jdk.CollectionConverters
+  }
+}

src/main/scala-3/org/uaparser/scala/scala.scala

@@ -0,0 +1,7 @@
+package org.uaparser
+
+package object scala {
+  object jdk {
+    val CollectionConverters = _root_.scala.jdk.CollectionConverters
+  }
+}

src/main/scala-2.13/org/uaparser/scala/YamlUtil.scala → src/main/scala/org/uaparser/scala/YamlUtil.scala

@@ -1,10 +1,10 @@
 package org.uaparser.scala
 
-import org.yaml.snakeyaml.{LoaderOptions, Yaml}
-import org.yaml.snakeyaml.constructor.SafeConstructor
 import java.io.InputStream
-import scala.jdk.CollectionConverters._
 import java.util.{List => JList, Map => JMap}
+import jdk.CollectionConverters._
+import org.yaml.snakeyaml.{LoaderOptions, Yaml}
+import org.yaml.snakeyaml.constructor.SafeConstructor
 
 private[scala] object YamlUtil {
   def loadYamlAsMap(yamlStream: InputStream, loader: Yaml): Map[String, List[Map[String, String]]] = {