chore(glue-alpha): add new G.12X, G.16X, R.1X, R.2X, R.4X, and R.8X worker types (#35082)

### Issue # (if applicable)

Closes #35071.

### Reason for this change
AWS Glue now supports new workers for larger and memory intensive workloads.

https://aws.amazon.com/about-aws/whats-new/2025/07/aws-glue-supports-new-workers-larger-memory-intensive-workloads/

But these worker types are missing.



### Description of changes
Add worker types.



### Describe any new or updated permissions being added
N/A



### Description of how you validated changes



### 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: mazyu36

packages/@aws-cdk/aws-glue-alpha/lib/constants.ts

@@ -39,6 +39,24 @@ export enum WorkerType {
    */
   G_8X = 'G.8X',
 
+  /**
+   * G.12X Worker Type
+   * 12 DPU (48 vCPU, 192 GB of memory, 768 GB disk), and provides 1 executor per worker.
+   * We recommend this worker type for jobs with very large and resource-intensive workloads
+   * that require significant compute capacity. This worker type is available only for
+   * AWS Glue version 3.0 or later jobs.
+   */
+  G_12X = 'G.12X',
+
+  /**
+   * G.16X Worker Type
+   * 16 DPU (64 vCPU, 256 GB of memory, 1024 GB disk), and provides 1 executor per worker.
+   * We recommend this worker type for jobs with the largest and most resource-intensive workloads
+   * that require maximum compute capacity. This worker type is available only for
+   * AWS Glue version 3.0 or later jobs.
+   */
+  G_16X = 'G.16X',
+
   /**
    * G.025X Worker Type
    * 0.25 DPU (2 vCPU, 4 GB of memory, 64 GB disk), and provides 1 executor per worker. Suitable for low volume streaming jobs.
@@ -49,6 +67,34 @@ export enum WorkerType {
    * Z.2X Worker Type
    */
   Z_2X = 'Z.2X',
+
+  /**
+   * R.1X Worker Type
+   * 1 M-DPU (4 vCPUs, 32 GB memory), We recommend this worker type for memory-intensive workloads
+   * that frequently encounter out-of-memory errors or require high memory-to-CPU ratios.
+   */
+  R_1X = 'R.1X',
+
+  /**
+   * R.2X Worker Type
+   * 2 M-DPU (8 vCPUs, 64 GB memory), We recommend this worker type for memory-intensive workloads
+   * that frequently encounter out-of-memory errors or require high memory-to-CPU ratios.
+   */
+  R_2X = 'R.2X',
+
+  /**
+   * R.4X Worker Type
+   * 4 M-DPU (16 vCPUs, 128 GB memory), We recommend this worker type for large memory-intensive workloads
+   * that frequently encounter out-of-memory errors or require high memory-to-CPU ratios.
+   */
+  R_4X = 'R.4X',
+
+  /**
+   * R.8X Worker Type
+   * 8 M-DPU (32 vCPUs, 256 GB memory), We recommend this worker type for very large memory-intensive workloads
+   * that frequently encounter out-of-memory errors or require high memory-to-CPU ratios.
+   */
+  R_8X = 'R.8X',
 }
 
 /**