GORT 0.12.0

🚀 New

• Replace all instances of Pandas with Polars.

✨ Improved

• In Gort.observe(), retry after a wait period if the scheduler cannot find a valid tile to observe.
• Output a message after the shutdown recipe instructing observers to check the dome and confirm it's fully closed.

🔧 Fixed

• Manually refresh the progress bar only once a second, and only after an update. Hopefully this helps with the event loop getting sluggish after a while.
• Turn off spectrograph room lights on startup.

⚙️ Engineering

• Format code using ruff and updated dependencies and workflows.