Add Redis service and Celery configuration to Docker setup

- Introduced Redis service in both docker-compose files for production and development.
- Updated web and celery services to use Redis as the broker and result backend.
- Added necessary environment variables for Celery in settings.py.
- Included new tasks and soil_data apps in Django settings and updated URL routing.
- Updated requirements.txt to include Celery and Redis dependencies.

config/celery.py

@@ -0,0 +1,9 @@
+import os
+
+from celery import Celery
+
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "config.settings")
+
+app = Celery("config")
+app.config_from_object("django.conf:settings", namespace="CELERY")
+app.autodiscover_tasks()