Can Build Plugin Commands Run in Parallel? - Xcode14 Beta

I am using a pre-build plugin with the Xcode 14 beta to verify cer files are in the correct format before every build. The code loops through the files the same way as this wwdc video: https://developer.apple.com/videos/play/wwdc2022/110401/

None of the commands have dependancies on each other so it should be running parallel if possible, but the build timeline shows the returned commands are all run serially. are there any changes I could make to parallelize them?

    Here is a snippet of the code returning the commands as described!

return try target.sourceFiles(withSuffix: "cer").map { file in
          .prebuildCommand(
            displayName: "Validate Cer is running",
             executable: try context.tool(named: "verify-file").path,
            arguments: [file.path],
            outputFilesDirectory: verifOutputsDir
          )
      }

Thanks for the help!