fix: use setuptools in tox instead of base.in

tox.ini

@@ -37,6 +37,7 @@ norecursedirs = .* docs requirements site-packages
 
 [testenv]
 deps = 
+    setuptools
     django42: Django>=4.2,<4.3
     -r{toxinidir}/requirements/test.txt
 commands = 
@@ -52,6 +53,7 @@ allowlist_externals =
     make
     rm
 deps = 
+    setuptools
     -r{toxinidir}/requirements/doc.txt
 commands = 
     doc8 --ignore-path docs/_build README.rst docs
@@ -64,6 +66,7 @@ commands =
 allowlist_externals = 
     make
 deps = 
+    setuptools
     -r{toxinidir}/requirements/dev.txt
 commands = 
     make validate_translations
@@ -72,6 +75,7 @@ commands =
 allowlist_externals = 
     make
 deps = 
+    setuptools
     -r{toxinidir}/requirements/quality.txt
 commands = 
     pylint program_intent_engagement test_utils manage.py
@@ -84,6 +88,7 @@ commands =
 setenv = 
     DJANGO_SETTINGS_MODULE = program_intent_engagement.settings.test
 deps = 
+    setuptools
     -r{toxinidir}/requirements/test.txt
 commands = 
     code_annotations django_find_annotations --config_file .pii_annotations.yml --lint --report --coverage