bug: Massive RAM Usage >80Go

### mapbox-gl-js version v3.21.0 ### Browser and version Firefox 140.9.1esr (64-bit) ### Expected behavior Rendering the full page with v3.19.0 consumes at the peak 600Mo total. <img width="580" height="122" alt="Image" src="https://github.com/user-attachments/assets/63c8e904-ceaf-47f1-9525-b8f637d53d05" /> ### Actual behavior The exact same page with just the Mapbox GL JS version upgrade. Consuming 16Go of RAM on first allocations. It continues to increase, the user had to cut it when it reached 82Go of allocation. `populateUBO` seems to be the active function at the moment when the massive allocation happened <img width="1001" height="654" alt="Image" src="https://github.com/user-attachments/assets/1f184e6e-e314-4e5c-96a4-5cea602c6509" /> ### Link to the demonstration _No response_ ### Steps to trigger the unexpected behavior Unsure but visiting a Mapbox GL JS map with a Debian 13 with Firefox 140.9.1esr (64-bit) (latest ESR version) triggered the issue. I am unsure what to provide as info. The intuition that led me to downgrade Mapbox GL JS was https://github.com/mapbox/mapbox-gl-js/issues/13651 ### Relevant log output ```shell ```