deps: bump pytest-httpx from 0.30.0 to 0.31.1 (#158)

Author: dependabot[bot]

poetry.lock

@@ -39,7 +39,7 @@ bandit = "^1.7.8"
 pytest-subtests = ">=0.12.1,<0.14.0"
 pytest-cov = "^5.0.0"
 pytest-asyncio = ">=0.23.6,<0.25.0"
-pytest-httpx = "^0.30.0"
+pytest-httpx = ">=0.30,<0.32"
 
 
 [build-system]