Update pytest requirement from <9,>=8.4 to >=8.4,<10 in /workers (#22)

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@8.4.0...9.0.2)

---
updated-dependencies:
- dependency-name: pytest
  dependency-version: 9.0.2
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

workers/requirements-test.txt

@@ -1,2 +1,2 @@
 httpx>=0.28,<1
-pytest>=8.4,<9
+pytest>=8.4,<10

workers/requirements.txt

@@ -1,4 +1,4 @@
 httpx>=0.28,<1
 open-clip-torch>=2.26,<3
 Pillow>=11,<12
-pytest>=8.4,<9
+pytest>=8.4,<10