[Lombok] Support RawTypes in fields wtih @Singular in K2 version

^KT-53657 Fixed

plugins/lombok/testData/box/builderRawSingular.kt

@@ -0,0 +1,37 @@
+// WITH_STDLIB
+// FULL_JDK
+// FILE: User.java
+import lombok.Builder;
+import lombok.Data;
+import lombok.Singular;
+
+@Builder
+@Data
+public class User {
+    @Singular private java.util.Map numbers;
+    @Singular private java.util.List statuses;
+}
+
+// FILE: test.kt
+fun box(): String {
+    val userBuilder = User.builder()
+        .status(10)
+        .status("hello")
+        .statuses(listOf("world", 20))
+        .number("1", 1)
+        .numbers(mapOf(2 to "2"))
+
+    val user = userBuilder.build()
+
+    val expectedNumbers = mapOf("1" to 1, 2 to "2")
+    val expectedStatuses = listOf(10, "hello", "world", 20)
+
+    return if (
+        user.numbers == expectedNumbers &&
+        user.statuses == expectedStatuses
+    ) {
+        "OK"
+    } else {
+        "Error: $user"
+    }
+}