To do that you would have to define a custom locale in /usr/share/i18n/locales and define a custom LC_COLLATE section. See https://man7.org/linux/man-pages/man5/locale.5.html You can read /usr/share/i18n/locales/iso14651_t1_common as a (very) complex example.
But, full disclosure: I have never done it myself.
But, full disclosure: I have never done it myself.