Bump jwt from 1.5.4 to 1.5.6
Bump jwt from 1.5.4 to 1.5.6

Bumps [jwt](https://github.com/jwt/ruby-jwt) from 1.5.4 to 1.5.6.
- [Release notes](https://github.com/jwt/ruby-jwt/releases)
- [Changelog](https://github.com/jwt/ruby-jwt/blob/master/CHANGELOG.md)
- [Commits](https://github.com/jwt/ruby-jwt/compare/v1.5.4...v1.5.6)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
mkllnk/openfoodnetwork,openfoodfoundation/openfoodnetwork,mkllnk/openfoodnetwork,lin-d-hop/openfoodnetwork,openfoodfoundation/openfoodnetwork,Matt-Yorkley/openfoodnetwork,openfoodfoundation/openfoodnetwork,mkllnk/openfoodnetwork,lin-d-hop/openfoodnetwork,Matt-Yorkley/openfoodnetwork,lin-d-hop/openfoodnetwork,Matt-Yorkley/openfoodnetwork,lin-d-hop/openfoodnetwork,Matt-Yorkley/openfoodnetwork,mkllnk/openfoodnetwork,openfoodfoundation/openfoodnetwork