(aws-ses): use lambda.Runtime.NODEJS_12_X in DropSpamReceiptRule

[trivikr]

DropSpamReceiptRule currently uses lambda.Runtime.NODEJS_10_X

aws-cdk/packages/@aws-cdk/aws-ses/lib/receipt-rule.ts

Lines 177 to 182 in e628a73

	const fn = new lambda.SingletonFunction(this, 'Function', {
	runtime: lambda.Runtime.NODEJS_10_X,
	handler: 'index.handler',
	code: lambda.Code.fromInline(`exports.handler = ${dropSpamCode}`),
	uuid: '224e77f9-a32e-4b4d-ac32-983477abba16',
	});

Use lambda.Runtime.NODEJS_12_X instead.

Use Case

Reasons for recommending NODEJS_12_X:

• Node.js 12.x went LTS in October 2019, and has been actively supported since October 2020.
• Node.js 10.x is going end-of-life on April 30th, 2021

https://endoflife.date/nodejs

Proposed Solution

Use lambda.Runtime.NODEJS_12_X in DropSpamReceiptRule.

Other

Suggested in #12808 (comment)

• 👋 I may be able to implement this feature request
• ⚠️ This feature might incur a breaking change

---

This is a 🚀 Feature Request

[iliapolo]

Sounds good.

[github-actions]

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