Deps: Bump httpcore from 0.18.0 to 1.0.1

Bumps [httpcore](https://github.com/encode/httpcore) from 0.18.0 to 1.0.1.
- [Release notes](https://github.com/encode/httpcore/releases)
- [Changelog](https://github.com/encode/httpcore/blob/master/CHANGELOG.md)
- [Commits](encode/httpcore@0.18.0...1.0.1)

---
updated-dependencies:
- dependency-name: httpcore
  dependency-type: indirect
  update-type: version-update:semver-major
...

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