Bump httpcore from 0.18.0 to 1.0.0

Bumps [httpcore](https://github.com/encode/httpcore) from 0.18.0 to 1.0.0.
- [Release notes](https://github.com/encode/httpcore/releases)
- [Changelog](https://github.com/encode/httpcore/blob/master/CHANGELOG.md)
- [Commits](encode/httpcore@0.18.0...1.0.0)

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

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

requirements-dev.txt

@@ -50,7 +50,7 @@ h11==0.14.0
     #   uvicorn
 h5py==3.9.0
     # via datahub (pyproject.toml)
-httpcore==0.18.0
+httpcore==1.0.0
     # via httpx
 httpx==0.25.0
     # via datahub (pyproject.toml)