Set v1.7 EOL date and update CoreDns version table

Signed-off-by: Sunnatillo <sunnat.samadov@est.tech>

Author: Sunnatillo

CONTRIBUTING.md

@@ -142,7 +142,7 @@ Cluster API maintains the most recent release/releases for all supported API and
 |---------------|--------------|------------------------------------------------|
 | v1.9.x        | **v1beta1**  | when v1.11.0 will be released                  |
 | v1.8.x        | **v1beta1**  | when v1.10.0 will be released                  |
-| v1.7.x        | **v1beta1**  | when v1.9.0 will be released                   |
+| v1.7.x        | **v1beta1**  | EOL since 2024-12-10 - v1.9.0 release date     |
 | v1.6.x        | **v1beta1**  | EOL since 2024-08-12 - v1.8.0 release date     |
 | v1.5.x        | **v1beta1**  | EOL since 2024-04-16 - v1.7.0 release date     |
 | v1.4.x        | **v1beta1**  | EOL since 2023-12-05 - v1.6.0 release date     |

docs/book/src/reference/versions.md

@@ -140,6 +140,7 @@ The Kubeadm Control Plane requires the Kubeadm Bootstrap Provider.
 | v1.6 (v1beta1)      | v1.11.1                         |
 | v1.7 (v1beta1)      | v1.11.1                         |
 | v1.8 (v1beta1)      | v1.11.3                         |
+| v1.9 (v1beta1)      | v1.11.3                         |
 
 #### Kubernetes version specific notes