feat(ec2): Add support for P5 instances EC2 (#27705)

The P5 instance types were introduced in [July 2023](https://aws.amazon.com/blogs/aws/new-amazon-ec2-p5-instances-powered-by-nvidia-h100-tensor-core-gpus-for-accelerating-generative-ai-and-hpc-applications/).
The instance types are supported in [CloudFormation](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-instance.html#cfn-ec2-instance-instancetype).


Closes #27704.

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packages/aws-cdk-lib/aws-ec2/lib/instance-types.ts

@@ -880,6 +880,16 @@ export enum InstanceClass {
    */
   P4D = 'p4d',
 
+  /**
+   * Parallel-processing optimized instances, 5th generation
+   */
+  PARALLEL5 = 'parallel5',
+
+  /**
+   * Parallel-processing optimized instances, 5th generation
+   */
+  P5 = 'p5',
+
   /**
    * Arm processor based instances, 1st generation
    */
@@ -1391,6 +1401,8 @@ export class InstanceType {
       [InstanceClass.P4DE]: 'p4de',
       [InstanceClass.PARALLEL4]: 'p4d',
       [InstanceClass.P4D]: 'p4d',
+      [InstanceClass.PARALLEL5]: 'p5',
+      [InstanceClass.P5]: 'p5',
       [InstanceClass.ARM1]: 'a1',
       [InstanceClass.A1]: 'a1',
       [InstanceClass.STANDARD6_GRAVITON]: 'm6g',

packages/aws-cdk-lib/aws-ec2/test/instance.test.ts

@@ -119,7 +119,7 @@ describe('instance', () => {
   });
   test('instance architecture is correctly discerned for x86-64 instance', () => {
     // GIVEN
-    const sampleInstanceClasses = ['c5', 'm5ad', 'r5n', 'm6', 't3a', 'r6i', 'r6a', 'p4de']; // A sample of x86-64 instance classes
+    const sampleInstanceClasses = ['c5', 'm5ad', 'r5n', 'm6', 't3a', 'r6i', 'r6a', 'p4de', 'p5']; // A sample of x86-64 instance classes
 
     for (const instanceClass of sampleInstanceClasses) {
       // WHEN