Multiple line stat collectors aren't supported

[Vichy97]

If you try to add multiple LinesOfCodeStatCollectors, only the first one appears to have any effect. In this example, I only see Kotlin files. If I remove the kotlin one, I will see only java files. It seems like despite the unique string keys, duplicate types are still being filtered out.

 addStatCollector(
    com.squareup.invert.collectors.linesofcode.LinesOfCodeStatCollector(
      name = "Kotlin",
      fileExtensions = listOf("kt", "kts"),
    )
  )
 addStatCollector(
    com.squareup.invert.collectors.linesofcode.LinesOfCodeStatCollector(
      name = "Java",
      fileExtensions = listOf("java"),
    )
  )