Bump middleman-syntax from 3.2.0 to 3.3.0
Bump middleman-syntax from 3.2.0 to 3.3.0

Bumps [middleman-syntax](https://github.com/middleman/middleman-syntax) from 3.2.0 to 3.3.0.
- [Release notes](https://github.com/middleman/middleman-syntax/releases)
- [Changelog](https://github.com/middleman/middleman-syntax/blob/master/CHANGELOG.md)
- [Commits](https://github.com/middleman/middleman-syntax/commits/v3.3.0)

---
updated-dependencies:
- dependency-name: middleman-syntax
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
unhappychoice/blog,unhappychoice/blog,unhappychoice/blog