chore(deps-dev): bump the kiota group with 3 updates

Bumps the kiota group with 3 updates: [microsoft-kiota-abstractions](https://github.com/microsoft/kiota-python), [microsoft-kiota-authentication-azure](https://github.com/microsoft/kiota-python) and [microsoft-kiota-http](https://github.com/microsoft/kiota-python).


Updates `microsoft-kiota-abstractions` from 1.6.7 to 1.6.8
- [Release notes](https://github.com/microsoft/kiota-python/releases)
- [Changelog](https://github.com/microsoft/kiota-python/blob/main/release-please-config.json)
- [Commits](microsoft/kiota-python@microsoft-kiota-abstractions-v1.6.7...microsoft-kiota-abstractions-v1.6.8)

Updates `microsoft-kiota-authentication-azure` from 1.6.7 to 1.6.8
- [Release notes](https://github.com/microsoft/kiota-python/releases)
- [Changelog](https://github.com/microsoft/kiota-python/blob/main/release-please-config.json)
- [Commits](microsoft/kiota-python@microsoft-kiota-authentication-azure-v1.6.7...microsoft-kiota-authentication-azure-v1.6.8)

Updates `microsoft-kiota-http` from 1.6.7 to 1.6.8
- [Release notes](https://github.com/microsoft/kiota-python/releases)
- [Changelog](https://github.com/microsoft/kiota-python/blob/main/release-please-config.json)
- [Commits](microsoft/kiota-python@microsoft-kiota-http-v1.6.7...microsoft-kiota-http-v1.6.8)

---
updated-dependencies:
- dependency-name: microsoft-kiota-abstractions
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: kiota
- dependency-name: microsoft-kiota-authentication-azure
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: kiota
- dependency-name: microsoft-kiota-http
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: kiota
...

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

requirements-dev.txt

@@ -145,11 +145,11 @@ httpx[http2]==0.28.1
 
 hyperframe==6.0.1 ; python_full_version >= '3.6.1'
 
-microsoft-kiota-abstractions==1.6.7
+microsoft-kiota-abstractions==1.6.8
 
-microsoft-kiota-authentication-azure==1.6.7
+microsoft-kiota-authentication-azure==1.6.8
 
-microsoft-kiota-http==1.6.7
+microsoft-kiota-http==1.6.8
 
 multidict==6.1.0 ; python_version >= '3.7'