Bump httpcore from 1.0.7 to 1.0.8 in the all group across 1 directory

Bumps the all group with 1 update in the / directory: [httpcore](https://github.com/encode/httpcore).


Updates `httpcore` from 1.0.7 to 1.0.8
- [Release notes](https://github.com/encode/httpcore/releases)
- [Changelog](https://github.com/encode/httpcore/blob/master/CHANGELOG.md)
- [Commits](encode/httpcore@1.0.7...1.0.8)

---
updated-dependencies:
- dependency-name: httpcore
  dependency-version: 1.0.8
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: all
...

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

Author: dependabot[bot]

requirements.txt

@@ -8,7 +8,7 @@ dnspython==2.7.0
 email-validator==2.2.0
 exceptiongroup==1.2.2 ; python_full_version < '3.11'
 h11==0.14.0
-httpcore==1.0.7
+httpcore==1.0.8
 httpx==0.28.1
 idna==3.10
 jmespath==1.0.1