Bump smarty/smarty from 4.5.1 to 5.3.1

Bumps [smarty/smarty](https://github.com/smarty-php/smarty) from 4.5.1 to 5.3.1.
- [Release notes](https://github.com/smarty-php/smarty/releases)
- [Changelog](https://github.com/smarty-php/smarty/blob/master/CHANGELOG.md)
- [Commits](smarty-php/smarty@v4.5.1...v5.3.1)

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

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

composer.json

@@ -36,7 +36,7 @@
         "pear/http_request2": "^2.6.0",
         "pear/net_dns2": "^1.5.4",
         "php81_bc/strftime": "^0.7.4",
-        "smarty/smarty": "^4.3.4",
+        "smarty/smarty": "^5.3.1",
         "voku/simple-cache": "^4.1.0"
     },
     "minimum-stability": "dev",