alright, I’m wrong again.
Sorry for my suspicion, I just haven’t seen many support requests for plugins here since this forum is specifically for Mod Devices.
But hey whatever.
Here’s the rubberband project: https://github.com/breakfastquay/rubberband/tree/master/ladspa
But I’d recommend just right clicking the region and selecting edit>pitch shift. This uses the rubberband backend, no plugin required.