Only pin mkdocs-material to minor version, ignore specific patch version (#4556)
Only pin mkdocs-material to minor version, ignore specific patch version (#4556)

* Bump mkdocs-material from 5.5.5 to 5.5.6

Bumps [mkdocs-material](https://github.com/squidfunk/mkdocs-material) from 5.5.5 to 5.5.6.
- [Release notes](https://github.com/squidfunk/mkdocs-material/releases)
- [Changelog](https://github.com/squidfunk/mkdocs-material/blob/master/docs/changelog.md)
- [Commits](https://github.com/squidfunk/mkdocs-material/compare/5.5.5...5.5.6)

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

* Update dev-requirements.txt

* Update dev-requirements.txt

Co-authored-by: dependabot-preview[bot] <6a4c1c4838f800d1998274cd5234e1f65c55e90c@users.noreply.github.com>
Co-authored-by: Evan Pete Walsh <8aa1dcec45eed2823433bd3f497ad7c510fe0357@gmail.com>
allenai/allennlp,allenai/allennlp,allenai/allennlp,allenai/allennlp