Bump http-cache-semantics and vue-resource

Bumps [http-cache-semantics](https://github.com/kornelski/http-cache-semantics) to 4.1.1 and updates ancestor dependency [vue-resource](https://github.com/pagekit/vue-resource). 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](https://github.com/kornelski/http-cache-semantics/commits)

Updates `vue-resource` from 1.5.1 to 1.5.3
- [Release notes](https://github.com/pagekit/vue-resource/releases)
- [Commits](pagekit/vue-resource@1.5.1...1.5.3)

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

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