Bump url-parse from 1.5.3 to 1.5.10 in /demo

Bumps [url-parse](https://github.com/unshiftio/url-parse) from 1.5.3 to 1.5.10.
- [Release notes](https://github.com/unshiftio/url-parse/releases)
- [Commits](unshiftio/url-parse@1.5.3...1.5.10)

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

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Author: dependabot[bot]