Fix --scalapy-version option description

Author: Gedochao

modules/cli/src/main/scala/scala/cli/commands/shared/SharedPythonOptions.scala

@@ -14,7 +14,7 @@ final case class SharedPythonOptions(
  @ExtraName("py")
  python: Option[Boolean] = None,
  @Tag(tags.experimental)
- @HelpMessage(s"[experimental] Set ScalaPy version (${Constants.scalaPyVersion} by default)")
+ @HelpMessage(s"Set ScalaPy version (${Constants.scalaPyVersion} by default)")
  @ExtraName("scalapyVersion")
  scalaPyVersion: Option[String] = None
 )

website/docs/reference/cli-options.md

@@ -1039,7 +1039,7 @@ Enable Python support via ScalaPy
 
 Aliases: `--scalapy-version`
 
-[experimental] Set ScalaPy version (0.5.3 by default)
+Set ScalaPy version (0.5.3 by default)
 
 ## Repl options