Bump httpcore from 1.0.6 to 1.0.7 in /src

Bumps [httpcore](https://github.com/encode/httpcore) from 1.0.6 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@1.0.6...1.0.7)

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

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

src/requirements.txt

@@ -19,7 +19,7 @@ h2==4.1.0
     # via httpx
 hpack==4.0.0
     # via h2
-httpcore==1.0.6
+httpcore==1.0.7
     # via httpx
 httpx[http2]==0.27.2
     # via -r requirements.in