Bump httpcore from 1.0.5 to 1.0.7

Bumps [httpcore](https://github.com/encode/httpcore) from 1.0.5 to 1.0.7.
- [Release notes](https://github.com/encode/httpcore/releases)
- [Changelog](https://github.com/encode/httpcore/blob/master/CHANGELOG.md)
- [Commits](encode/httpcore@1.0.5...1.0.7)

---
updated-dependencies:
- dependency-name: httpcore
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>