Bump http-cache-semantics and gatsby in /gatsby

Bumps [http-cache-semantics](https://github.com/kornelski/http-cache-semantics) to 4.1.1 and updates ancestor dependency [gatsby](https://github.com/gatsbyjs/gatsby). These dependencies need to be updated together.


Updates `http-cache-semantics` from 3.8.1 to 4.1.1
- [Release notes](https://github.com/kornelski/http-cache-semantics/releases)
- [Commits](kornelski/http-cache-semantics@v3.8.1...v4.1.1)

Updates `gatsby` from 2.25.3 to 5.5.0
- [Release notes](https://github.com/gatsbyjs/gatsby/releases)
- [Changelog](https://github.com/gatsbyjs/gatsby/blob/master/CHANGELOG.md)
- [Commits](https://github.com/gatsbyjs/gatsby/compare/gatsby@2.25.3...gatsby@5.5.0)

---
updated-dependencies:
- dependency-name: http-cache-semantics
  dependency-type: indirect
- dependency-name: gatsby
  dependency-type: direct:production
...

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

Author: dependabot[bot]