chore: Update pylint configuration for Django project compatibility

- Configured django-settings-module to point to the project settings for proper integration with pylint-django.
- Addressed compatibility with the newer pylint version, which enforces a limit of 5 positional arguments by default. Added too-many-positional-arguments to the ignore list to accommodate functions exceeding this limit.

pylintrc

@@ -70,6 +70,7 @@
 ignore = 
 persistent = yes
 load-plugins = edx_lint.pylint,pylint_django,pylint_celery
+django-settings-module=edxsearch.settings
 
 [MESSAGES CONTROL]
 enable = 
@@ -278,6 +279,7 @@ disable =
 	too-many-locals,
 	too-many-public-methods,
 	too-many-return-statements,
+	too-many-positional-arguments,
 	ungrouped-imports,
 	unspecified-encoding,
 	unused-wildcard-import,