chore(deps-dev): bump attrs from 25.3.0 to 26.1.0

Bumps [attrs](https://github.com/python-attrs/attrs) from 25.3.0 to 26.1.0.
- [Release notes](https://github.com/python-attrs/attrs/releases)
- [Changelog](https://github.com/python-attrs/attrs/blob/main/CHANGELOG.md)
- [Commits](python-attrs/attrs@25.3.0...26.1.0)

---
updated-dependencies:
- dependency-name: attrs
  dependency-version: 26.1.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

requirements-dev.txt

@@ -4,7 +4,7 @@ async-generator==1.10 ; python_version >= '3.5'
 
 asyncmock==0.4.2
 
-attrs==25.3.0 ; python_version >= '3.7'
+attrs==26.1.0 ; python_version >= '3.7'
 
 azure-core==1.41.0 ; python_version >= '3.7'