Update humanmade/smart-media requirement from ~0.5.5 to ~0.5.7

Updates the requirements on [humanmade/smart-media](https://github.com/humanmade/smart-media) to permit the latest version.
- [Release notes](https://github.com/humanmade/smart-media/releases)
- [Changelog](https://github.com/humanmade/smart-media/blob/master/CHANGELOG.md)
- [Commits](humanmade/smart-media@0.5.5...0.5.7)

---
updated-dependencies:
- dependency-name: humanmade/smart-media
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

composer.json

@@ -13,7 +13,7 @@
 		"php": ">=7.1",
 		"darylldoyle/safe-svg": "2.0.3",
 		"humanmade/tachyon-plugin": "~0.11.9",
-		"humanmade/smart-media": "~0.5.5",
+		"humanmade/smart-media": "~0.5.7",
 		"humanmade/aws-rekognition": "~0.1.10",
 		"humanmade/rename-images-command": "^0.1.0",
 		"humanmade/asset-manager-framework": "^0.13.5",