v1.2.0

### Added

• Support for dorado demux to demultiplex barcoded runs. Specify your --barcode_kit to activate demultiplexing.
• Support for poly(a) tail length estimation with --poly_a_config. You can configure by providng a TOML file to --poly_a_config which is described in detail here

Changed

• Updated Dorado to v0.7.1 (see https://github.com/nanoporetech/dorado/releases/tag/v0.7.1)