use ClassTag instead of Manifest

[xuwei-k]

deprecated since Scala 3.

$ scala -deprecation
Welcome to Scala 3.3.1 (11.0.20, Java OpenJDK 64-Bit Server VM).
Type in expressions for evaluation. Or try :help.
                                                                                                                                      
scala> def array[T: scala.reflect.Manifest](size: Int)(f: => T) = Array.tabulate(size)(_ => f)
def array[T](size: Int)(f: => T)(implicit evidence$1: Manifest[T]): Array[T]
                                                                                                                                      
scala> array[String](1)("a")
1 warning found
-- Deprecation Warning: --------------------------------------------------------
1 |array[String](1)("a")
  |                     ^
  |Compiler synthesis of Manifest and OptManifest is deprecated, instead
  |replace with the type `scala.reflect.ClassTag[String]`.
  |Alternatively, consider using the new metaprogramming features of Scala 3,
  |see https://docs.scala-lang.org/scala3/reference/metaprogramming.html
val res0: Array[String] = Array(a)

[eed3si9n]

Thanks!