Bump smarty/smarty from 4.3.4 to 4.5.1

Bumps [smarty/smarty](https://github.com/smarty-php/smarty) from 4.3.4 to 4.5.1.
- [Release notes](https://github.com/smarty-php/smarty/releases)
- [Changelog](https://github.com/smarty-php/smarty/blob/v4.5.1/CHANGELOG.md)
- [Commits](smarty-php/smarty@v4.3.4...v4.5.1)

---
updated-dependencies:
- dependency-name: smarty/smarty
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]