fix: Add logic to filter active subscriptions in check_if_is_premium_user function (#2673)

# Description

Please include a summary of the changes and the related issue. Please
also include relevant motivation and context.

## Checklist before requesting a review

Please delete options that are not relevant.

- [ ] My code follows the style guidelines of this project
- [ ] I have performed a self-review of my code
- [ ] I have commented hard-to-understand areas
- [ ] I have ideally added tests that prove my fix is effective or that
my feature works
- [ ] New and existing unit tests pass locally with my changes
- [ ] Any dependent changes have been merged

## Screenshots (if appropriate):

Co-authored-by: Stan Girard <stan@quivr.app>

backend/celery_worker.py

@@ -199,6 +199,16 @@ def check_if_is_premium_user():
         )
         .execute()
     ).data
+    # Only get the subscriptions with status active
+    logger.info(f"Subscriptions: {subscriptions}")
+    if len(subscriptions) > 0:
+        subscriptions = [
+            subscription
+            for subscription in subscriptions
+            if subscription["attrs"]["status"] == "active"
+        ]
+    else:
+        logger.info(f"No active subscriptions found")
 
     # Get List of all customers
     customers = (