Select MD5 (faster) password hasher for tests

In the timeline project this reduced test time by 10%.

server/config/settings/test.py

@@ -34,3 +34,8 @@ class DisableMigrations(dict):
 
 
 MIGRATION_MODULES = DisableMigrations()
+
+# Select faster password hasher during tests
+PASSWORD_HASHERS = [
+    "django.contrib.auth.hashers.MD5PasswordHasher",
+]

server/config/settings/test_cypress.py

@@ -26,3 +26,8 @@ REST_FRAMEWORK["DEFAULT_THROTTLE_RATES"] = {
 }
 
 RATELIMIT_ENABLE = False
+
+# Select faster password hasher during tests
+PASSWORD_HASHERS = [
+    "django.contrib.auth.hashers.MD5PasswordHasher",
+]