Bump url-parse from 1.5.2 to 1.5.9 in /digdag-ui

Bumps [url-parse](https://github.com/unshiftio/url-parse) from 1.5.2 to 1.5.9.
- [Release notes](https://github.com/unshiftio/url-parse/releases)
- [Commits](unshiftio/url-parse@1.5.2...1.5.9)

---
updated-dependencies:
- dependency-name: url-parse
  dependency-type: direct:production
...

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

digdag-ui/package.json

@@ -49,7 +49,7 @@
     "tar-js": "^0.3.0",
     "tether": "^1.4.5",
     "urijs": "1.19.11",
-    "url-parse": "1.5.2",
+    "url-parse": "1.5.9",
     "uuid": "^3.2.1",
     "whatwg-fetch": "2.0.3"
   },