The ‘Filter - search’ element’s input already includes an aria-label. I have therefore moved this item to the “Improvements” category and added it to our to-do list, as I agree that it should be possible to modify the aria-label.
We’ve fixed this issue in Bricks 2.0.2 now available as a one-click update in your WordPress Dashboard.
Please take your time to read the changelog entry before updating: Bricks 2.0.2 Changelog – Bricks, and let us know if you continue to experience issues.