Upgrade dependencies to 0.4 (#112)

* intermediate commit

* building passing

* tests passing

* cargo fmt

* Address comments

* Improve checks

* Format

* Fix CI for no-std

* Update CHANGELOG

* Fix no-std

Co-authored-by: Marcin Gorny <marcin.gorny.94@protonmail.com>

* Revert CI change

* Fix CI for merge groups

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Co-authored-by: nikkolasg <nikkolasg@gmail.com>
Co-authored-by: Nicolas Gailly <nikkolasg@users.noreply.github.com>
Co-authored-by: Marcin Gorny <marcin.gorny.94@protonmail.com>