chore(deps): update dependency pytest to v8.3.1 (#480)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

api/requirements_dev.txt

@@ -4,7 +4,7 @@ coverage==7.6.0
 flake8==7.1.0
 httpx==0.27.0
 locust==2.29.1
-pytest==8.2.2
+pytest==8.3.1
 requests==2.32.3
 uvicorn==0.30.3
 setuptools>=65.5.1 # not directly required, pinned by Snyk to avoid a vulnerability