docs: add Angular 19 to Version compatibility table (#509)

Author: timdeschryver

README.md

@@ -179,6 +179,7 @@ You may also be interested in installing `jest-dom` so you can use
 
 | Angular | Angular Testing Library      |
 | ------- | ---------------------------- |
+| 19.x    | 17.x, 16.x, 15.x, 14.x, 13.x |
 | 18.x    | 17.x, 16.x, 15.x, 14.x, 13.x |
 | 17.x    | 17.x, 16.x, 15.x, 14.x, 13.x |
 | 16.x    | 14.x, 13.x                   |