Unpin django-pytest now that pytest has upgraded to 5.4.0 and later (#24730)

- Originally pinned in PR #23566
- pytest was unpinned in PR #24717 and upgraded to v6+

requirements/constraints.txt

@@ -91,10 +91,6 @@ path<13.2.0
 # ARCHBOM-1141: pip-tools upgrade requires pip upgrade
 pip-tools<5.0.0
 
-# pytest-django 3.9.0 has a fix for pytest 5.4.0+ that breaks cleanup after failed tests in earlier pytest versions
-# https://github.com/pytest-dev/pytest-django/issues/824
-pytest-django<3.9.0
-
 # Upgrading to 2.5.3 on 2020-01-03 triggered "'tzlocal' object has no attribute '_std_offset'" errors in production
 python-dateutil==2.4.0
 

requirements/edx/development.txt

@@ -234,7 +234,7 @@ pyrsistent==0.16.0        # via jsonschema
 pysrt==1.1.2              # via -r requirements/edx/testing.txt, edxval
 pytest-attrib==0.1.3      # via -r requirements/edx/testing.txt
 pytest-cov==2.10.0        # via -r requirements/edx/testing.txt
-pytest-django==3.8.0      # via -c requirements/edx/../constraints.txt, -r requirements/edx/testing.txt
+pytest-django==3.9.0      # via -r requirements/edx/testing.txt
 pytest-forked==1.3.0      # via -r requirements/edx/testing.txt, pytest-xdist
 pytest-json-report==1.2.1  # via -r requirements/edx/testing.txt
 pytest-metadata==1.8.0    # via -r requirements/edx/testing.txt, pytest-json-report

requirements/edx/testing.txt

@@ -224,7 +224,7 @@ pyquery==1.4.1            # via -r requirements/edx/testing.in
 pysrt==1.1.2              # via -r requirements/edx/base.txt, edxval
 pytest-attrib==0.1.3      # via -r requirements/edx/testing.in
 pytest-cov==2.10.0        # via -r requirements/edx/testing.in
-pytest-django==3.8.0      # via -c requirements/edx/../constraints.txt, -r requirements/edx/testing.in
+pytest-django==3.9.0      # via -r requirements/edx/testing.in
 pytest-forked==1.3.0      # via pytest-xdist
 pytest-json-report==1.2.1  # via -r requirements/edx/testing.in
 pytest-metadata==1.8.0    # via -r requirements/edx/testing.in, pytest-json-report