Bump class-transformer from 0.2.3 to 0.3.1

Bumps [class-transformer](https://github.com/typestack/class-transformer) from 0.2.3 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](typestack/class-transformer@v0.2.3...v0.3.1)

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

Author: dependabot[bot]

package-lock.json

@@ -28,7 +28,7 @@
   },
   "dependencies": {
     "axios": "^0.19.2",
-    "class-transformer": "^0.2.3",
+    "class-transformer": "^0.3.1",
     "js-yaml": "^3.13.1",
     "lodash": "^4.17.13",
     "openvalidation-languageserver-backend": "^0.0.2",