chore: partially upgrade tests deps

- pytest 8.x makes tests ~ 20% slower, so I've stopped at 7.x for now
- factory-boy have an anoying DeprecationWarning that I do not understand,
  so I've skipped upgrading it for now

pyproject.toml

@@ -55,9 +55,9 @@ dev = [
 test = [
   "factory-boy==3.2.1",
   "playwright>=1.39",
-  "pytest==6.2.5",
-  "pytest-django==4.5.2",
-  "pytest-playwright==0.4.3",
+  "pytest==7.3.2",
+  "pytest-django==4.8.0",
+  "pytest-playwright==0.4.4",
   "pytest-xdist>=3.5.0,<4",
 ]
 docker = [