Test Replacing Promtail with Alloy in bbctl Dashboards

Feature Request

Why

Promtail is considered deprecated and will be replaced by Alloy. Promtail is scheduled to be removed from Big Bang entirely in release 3.5.0 so we need to ensure the bbctl chart can still function without it.

Alloy is the new solution for pod log scraping and ingesting that data into Loki. We need to test the bbctl chart can work with the following:

• Promtail disabled
• Alloy enabled
• Alloy configured to scrape data and import into Loki

Once we have validated this works, create a ticket for the Big Bang umbrella chart to replace all bbctl uses of Promtail with Alloy and include any changes that were required to get it working.