chore(rds): mysql 8.0.44, mariadb 10.6.24, 10.11.15, and 11.4.9 (#36126)

### Reason for this change
https://aws.amazon.com/about-aws/whats-new/2025/11/amazon-rds-mysql-new-minor-versions/
https://aws.amazon.com/about-aws/whats-new/2025/11/amazon-rds-mariadb-community-minor-versions/

### Description of changes
Add these versions:
- mysql 8.0.44
- mariadb 10.6.24, 10.11.15, and 11.4.9

### Description of how you validated changes
```console
$ aws rds describe-db-engine-versions --engine mysql --output table --query 'DBEngineVersions[*].{Engine:Engine,EngineVersion:EngineVersion}'

-----------------------------------
|    DescribeDBEngineVersions     |
+---------+-----------------------+
| Engine  |     EngineVersion     |
+---------+-----------------------+
...
|  mysql  |  8.0.44               |
...
+---------+-----------------------+

$ aws rds describe-db-engine-versions --engine mariadb --output table --query 'DBEngineVersions[*].{Engine:Engine,EngineVersion:EngineVersion}'

------------------------------
|  DescribeDBEngineVersions  |
+----------+-----------------+
|  Engine  |  EngineVersion  |
+----------+-----------------+
...
|  mariadb |  10.6.24        |
...
|  mariadb |  10.11.15       |
...
|  mariadb |  11.4.9         |
...
+----------+-----------------+
```

### Checklist
- [x] My code adheres to the [CONTRIBUTING GUIDE](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md) and [DESIGN GUIDELINES](https://github.com/aws/aws-cdk/blob/main/docs/DESIGN_GUIDELINES.md)

----

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

Author: phuhung273

packages/aws-cdk-lib/aws-rds/lib/instance-engine.ts

@@ -609,6 +609,8 @@ export class MariaDbEngineVersion {
   public static readonly VER_10_6_22 = MariaDbEngineVersion.of('10.6.22', '10.6');
   /** Version "10.6.23". */
   public static readonly VER_10_6_23 = MariaDbEngineVersion.of('10.6.23', '10.6');
+  /** Version "10.6.24". */
+  public static readonly VER_10_6_24 = MariaDbEngineVersion.of('10.6.24', '10.6');
 
   /** Version "10.11" (only a major version, without a specific minor version). */
   public static readonly VER_10_11 = MariaDbEngineVersion.of('10.11', '10.11');
@@ -644,6 +646,8 @@ export class MariaDbEngineVersion {
   public static readonly VER_10_11_13 = MariaDbEngineVersion.of('10.11.13', '10.11');
   /** Version "10.11.14". */
   public static readonly VER_10_11_14 = MariaDbEngineVersion.of('10.11.14', '10.11');
+  /** Version "10.11.15". */
+  public static readonly VER_10_11_15 = MariaDbEngineVersion.of('10.11.15', '10.11');
 
   /** Version "11.4.3". */
   public static readonly VER_11_4_3 = MariaDbEngineVersion.of('11.4.3', '11.4');
@@ -655,6 +659,8 @@ export class MariaDbEngineVersion {
   public static readonly VER_11_4_7 = MariaDbEngineVersion.of('11.4.7', '11.4');
   /** Version "11.4.8". */
   public static readonly VER_11_4_8 = MariaDbEngineVersion.of('11.4.8', '11.4');
+  /** Version "11.4.9". */
+  public static readonly VER_11_4_9 = MariaDbEngineVersion.of('11.4.9', '11.4');
 
   /** Version "11.8.3". */
   public static readonly VER_11_8_3 = MariaDbEngineVersion.of('11.8.3', '11.8');
@@ -1079,6 +1085,8 @@ export class MysqlEngineVersion {
   public static readonly VER_8_0_42 = MysqlEngineVersion.of('8.0.42', '8.0');
   /** Version "8.0.43". */
   public static readonly VER_8_0_43 = MysqlEngineVersion.of('8.0.43', '8.0');
+  /** Version "8.0.44". */
+  public static readonly VER_8_0_44 = MysqlEngineVersion.of('8.0.44', '8.0');
   /** Version "8.4.3". */
   public static readonly VER_8_4_3 = MysqlEngineVersion.of('8.4.3', '8.4');
   /** Version "8.4.4". */