Correct usage of `xtol` in `ghi_from_poa_driesse_2023`#1971

kandersolar merged 10 commits intopvlib:mainpvlib/pvlib-python:mainfrom

echedey-ls:typofix-ghi_from_poa_driesse_2023-xtolechedey-ls/pvlib-python:typofix-ghi_from_poa_driesse_2023-xtolCopy head branch name to clipboard