fix(deps): update ex_doc and vulnerable igniter (#994)

* deps(deps-dev): bump ex_doc from 0.40.3 to 0.40.4

Bumps [ex_doc](https://github.com/elixir-lang/ex_doc) from 0.40.3 to 0.40.4.
- [Release notes](https://github.com/elixir-lang/ex_doc/releases)
- [Changelog](https://github.com/elixir-lang/ex_doc/blob/main/CHANGELOG.md)
- [Commits](https://github.com/elixir-lang/ex_doc/compare/v0.40.3...v0.40.4)

---
updated-dependencies:
- dependency-name: ex_doc
  dependency-version: 0.40.4
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

* fix(deps): update vulnerable igniter dependency

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Mike Hostetler <84222+mikehostetler@users.noreply.github.com>