chore(deps): bump phoenix from 1.4.3 to 1.5.4 (#1594)
chore(deps): bump phoenix from 1.4.3 to 1.5.4 (#1594)

Bumps [phoenix](https://github.com/phoenixframework/phoenix) from 1.4.3 to 1.5.4.
- [Release notes](https://github.com/phoenixframework/phoenix/releases)
- [Changelog](https://github.com/phoenixframework/phoenix/blob/v1.5.4/CHANGELOG.md)
- [Commits](https://github.com/phoenixframework/phoenix/compare/v1.4.3...v1.5.4)

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

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