Bump phoenix from 1.4.4 to 1.4.6
Bump phoenix from 1.4.4 to 1.4.6

Bumps [phoenix](https://github.com/phoenixframework/phoenix) from 1.4.4 to 1.4.6.
- [Release notes](https://github.com/phoenixframework/phoenix/releases)
- [Changelog](https://github.com/phoenixframework/phoenix/blob/v1.4.6/CHANGELOG.md)
- [Commits](https://github.com/phoenixframework/phoenix/compare/v1.4.4...v1.4.6)

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