Bump @masatomakino/gulptask-demo-page from 0.6.4 to 0.6.5

Bumps [@masatomakino/gulptask-demo-page](https://github.com/MasatoMakino/gulptask-demo-page) from 0.6.4 to 0.6.5.
- [Release notes](https://github.com/MasatoMakino/gulptask-demo-page/releases)
- [Commits](MasatoMakino/gulptask-demo-page@v0.6.4...v0.6.5)

---
updated-dependencies:
- dependency-name: "@masatomakino/gulptask-demo-page"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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