* chore: bump to v1.0.0-beta.91

* docs: updated changelog

* chore: bump core version in cli package

* Update docs/changelog.md

* docs: add info about separator option on split command to changelog

* Update docs/changelog.md

Co-authored-by: Ivana Isadora Devcic <33730345+skadinna@users.noreply.github.com>
Co-authored-by: volodymyr-rutskyi <rutskyi.v@gmail.com>