Bump url-parse from 1.5.1 to 1.5.3 in /backend

Bumps [url-parse](https://github.com/unshiftio/url-parse) from 1.5.1 to 1.5.3.
- [Release notes](https://github.com/unshiftio/url-parse/releases)
- [Commits](https://github.com/unshiftio/url-parse/compare/1.5.1...1.5.3)

---
updated-dependencies:
- dependency-name: url-parse
  dependency-type: indirect
...

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

backend/package-lock.json

@@ -6642,9 +6642,9 @@
       }
     },
     "url-parse": {
-      "version": "1.5.1",
-      "resolved": "https://registry.npmjs.org/url-parse/-/url-parse-1.5.1.tgz",
-      "integrity": "sha512-HOfCOUJt7iSYzEx/UqgtwKRMC6EU91NFhsCHMv9oM03VJcVo2Qrp8T8kI9D7amFf1cu+/3CEhgb3rF9zL7k85Q==",
+      "version": "1.5.3",
+      "resolved": "https://registry.npmjs.org/url-parse/-/url-parse-1.5.3.tgz",
+      "integrity": "sha512-IIORyIQD9rvj0A4CLWsHkBBJuNqWpFQe224b6j9t/ABmquIS0qDU2pY6kl6AuOrL5OkCXHMCFNe1jBcuAggjvQ==",
       "dev": true,
       "requires": {
         "querystringify": "^2.1.1",