Update supported-kubernetes-versions.md

Author: abhilashaagarwala

AKS-Arc/supported-kubernetes-versions.md

@@ -52,7 +52,7 @@ You should install the latest patch release of the minor version you're running.
 
 | Release             | Supported minor & patch versions                 |
 |---------------------|--------------------------------------------------|
-| 2503                |    |
+| 2503                | 1.28.12, 1.28.14, 1.29.7, 1.29.9, 1.30.3, 1.30.4  |
 | 2411                | 1.27.7, 1.27.9, 1.28.5, 1.28.9, 1.29.2, 1.29.4   |
 | 2408                | 1.27.7, 1.27.9, 1.28.5, 1.28.9, 1.29.2, 1.29.4   |
 | 2405                | 1.26.10, 1.26.12, 1.27.7, 1.27.9, 1.28.3, 1.28.5 |