(aws-neptune): Include 1.0.5.0 in AWS Neptune Engine Version

[rakcy]

1.0.5.0 seems to be missing from the list of AWS Neptune Engine Version

Use Case

We need this to be able to use the latest AWS Neptune Engine Version

Proposed Solution

aws-cdk/packages/@aws-cdk/aws-neptune/lib/cluster.ts

Lines 16 to 55 in fc618f9

	export class EngineVersion {
	/**
	* Neptune engine version 1.0.1.0
	*/
	public static readonly V1_0_1_0 = new EngineVersion('1.0.1.0');
	/**
	* Neptune engine version 1.0.1.1
	*/
	public static readonly V1_0_1_1 = new EngineVersion('1.0.1.1');
	/**
	* Neptune engine version 1.0.1.2
	*/
	public static readonly V1_0_1_2 = new EngineVersion('1.0.1.2');
	/**
	* Neptune engine version 1.0.2.1
	*/
	public static readonly V1_0_2_1 = new EngineVersion('1.0.2.1');
	/**
	* Neptune engine version 1.0.2.2
	*/
	public static readonly V1_0_2_2 = new EngineVersion('1.0.2.2');
	/**
	* Neptune engine version 1.0.3.0
	*/
	public static readonly V1_0_3_0 = new EngineVersion('1.0.3.0');
	/**
	* Neptune engine version 1.0.4.0
	*/
	public static readonly V1_0_4_0 = new EngineVersion('1.0.4.0');
	/**
	* Neptune engine version 1.0.4.1
	*/
	public static readonly V1_0_4_1 = new EngineVersion('1.0.4.1');
	/**
	* Constructor for specifying a custom engine version
	* @param version the engine version of Neptune
	*/
	public constructor(public readonly version: string) {}
	}

---

This is a 🚀 Feature Request

[jumic]

I created a PR for the new version.

It is already possible to use the new version if you specify the version number as a string:

new neptune.DatabaseCluster(this, 'Database', {
  vpc,
  instanceType: neptune.InstanceType.T3_MEDIUM,
  engineVersion: new neptune.EngineVersion('1.0.5.0'),
});

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