Bump class-transformer from 0.2.2 to 0.3.1

Bumps [class-transformer](https://github.com/typestack/class-transformer) from 0.2.2 to 0.3.1.
- [Release notes](https://github.com/typestack/class-transformer/releases)
- [Changelog](https://github.com/typestack/class-transformer/blob/develop/CHANGELOG.md)
- [Commits](https://github.com/typestack/class-transformer/compare/v0.2.2...v0.3.1)

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

package.json

@@ -35,7 +35,7 @@
     "@nestjs/typeorm": "^6.1.0",
     "argon2": "0.25.1",
     "class-sanitizer": "^0.0.5",
-    "class-transformer": "^0.2.2",
+    "class-transformer": "^0.3.1",
     "class-validator": "^0.10.1",
     "dotenv": "^8.0.0",
     "nest-router": "^1.0.9",