feat(dev): modify schedule for Qdrant cluster ping (#275)

## Description
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[adds/removes/fixes/replaces] the [feature/bug/etc] -->

This pull request updates the schedule for the `ping-qdrant.yml` GitHub
Actions workflow to ensure the Qdrant vector store cluster is pinged
more frequently. The workflow now runs twice a week instead of once.

Workflow scheduling improvements:

* Updated the cron schedule in `.github/workflows/ping-qdrant.yml` to
run the workflow at 00:00 UTC on both Sundays and Wednesdays, increasing
the frequency from once to twice a week.

## Related Issue
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#123 or Resolves #123 -->

NA

## Screenshots/Screencasts
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changes (especially if it's a visual change) -->

NA

## Notes to Reviewer
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information that can help reviewer better review you changes -->

NA

---------

Co-authored-by: Copilot <198982749+Copilot@users.noreply.github.com>
Co-authored-by: babblebey <25631971+babblebey@users.noreply.github.com>

Author: babblebey

.github/workflows/ping-qdrant.yml

@@ -1,9 +1,11 @@
 name: Ping Vector Store (Qdrant) Cluster
 
 on:
-  # Run weekly on Sundays at 2 AM UTC to keep the cluster active
   schedule:
-    - cron: "0 2 * * 0"
+    # Run at 00:00 UTC on Sunday
+    - cron: "0 0 * * 0"
+    # Run at 00:00 UTC on Wednesday (approx. 3 days later)
+    - cron: "0 0 * * 3"
 
   # Allow manual triggering for testing
   workflow_dispatch: