Bump actix-web-httpauth from 0.3.2 to 0.4.0

Bumps [actix-web-httpauth](https://github.com/actix/actix-web-httpauth) from 0.3.2 to 0.4.0.
- [Release notes](https://github.com/actix/actix-web-httpauth/releases)
- [Changelog](https://github.com/actix/actix-web-httpauth/blob/master/CHANGELOG.md)
- [Commits](actix/actix-web-httpauth@0.3.2...v0.4.0)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]