Release v1.2.0

Major changes

• Update of the supported python versions to python >=3.9 and <3.12
• The build system was changed to poetry (https://python-poetry.org/).
• NetMHCIIpan4.3 is now supported
• more granular calculation of mutated rna expression columns

Minor changes

• Patient file is now optional in epitope mode
• increase version of several python dependenices (biopython, pandas, numpy, scipy, pysam, cython)
• update of documentation
• improvement of warning and logging messages
• minor bug fixes