Bump const_fn from 0.4.7 to 0.4.8 (#901)
Bump const_fn from 0.4.7 to 0.4.8 (#901)

Bumps [const_fn](https://github.com/taiki-e/const_fn) from 0.4.7 to 0.4.8.
- [Release notes](https://github.com/taiki-e/const_fn/releases)
- [Changelog](https://github.com/taiki-e/const_fn/blob/main/CHANGELOG.md)
- [Commits](https://github.com/taiki-e/const_fn/compare/v0.4.7...v0.4.8)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>

Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
saschagrunert/git-journal,saschagrunert/git-journal