Gateway API v1.3.0: Advancements in Request Mirroring, CORS, Gateway Merging, and Retry Budgets

Gateway API v1.3.0 lands with a killer feature: percentage-based request mirroring that makes traffic handling a whole lot savvier. Fancy a peek at the cutting-edge? Dive into the CORS filters and retry budgets, all shiny and experimental. Just a heads-up: these feature names sport an "X" at the front—meaning they might do a vanishing act in the next version.