build(deps): update pytest requirement

Updates the requirements on [pytest](https://github.com/pytest-dev/pytest) to permit the latest version.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@7.2.2...9.0.1)

---
updated-dependencies:
- dependency-name: pytest
  dependency-version: 9.0.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

setup.py

@@ -32,7 +32,7 @@
         'typing-extensions~=4.0'
     ],
     tests_require=[
-        'pytest>=7.2.2, <8.4.0',
+        'pytest>=7.2.2, <9.1.0',
         'coverage>=7.2.2, <7.7.0',
         'pytest-cov>=4.0, <6.1',
         'testfixtures>=8.3.0, <= 10.0.0'

test-requirements.txt

@@ -1,4 +1,4 @@
-pytest>=7.2.2, <8.4.0
+pytest>=7.2.2, <9.1.0
 pytest-mock~=3.14.0
 coverage>=7.2.2, <7.7.0
 testfixtures>=8.3.0, <= 10.0.0