Bump swagger-ui from 2.2.6 to 4.1.3 in /openidm-ui/openidm-ui-api

Bumps [swagger-ui](https://github.com/swagger-api/swagger-ui) from 2.2.6 to 4.1.3.
- [Release notes](https://github.com/swagger-api/swagger-ui/releases)
- [Changelog](https://github.com/swagger-api/swagger-ui/blob/master/.releaserc)
- [Commits](swagger-api/swagger-ui@v2.2.6...v4.1.3)

---
updated-dependencies:
- dependency-name: swagger-ui
  dependency-type: direct:development
...

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

openidm-ui/openidm-ui-api/package.json

@@ -6,7 +6,7 @@
     "grunt": "1.0.4",
     "grunt-cli": "1.2.0",
     "grunt-contrib-copy": "1.0.0",
-    "swagger-ui": "2.2.6",
+    "swagger-ui": "4.1.3",
     "swagger-ui-themes": "^2.0.1"
   }
 }