AWS Lambda Node 20.x Support

[mylesboone]

Lambda Node 18.x and 20.x runtimes come with AWS SDK v3.
This upgrades the use to AWS SDK v3.
@arithmetric Not sure how you manage versions of this gem, but this is incompatible with Lambda Node 16.x runtime.

[mylesboone]

@arithmetric do you need anything further on this?

[lucky81]

This update introduced an error for me as my S3 bucket is in a different region to my Lambda. The following fixed it:
overrides.s3 : new S3Client({region: "eu-west-2", signatureVersion: 'v4'})

[mylesboone]

This now uses SES v2, which supports emails up to 40mb.

[nastevens]

Just updated with this version alongside an update to Node 20. Seems to be working great!

[mylesboone]

Hey @arithmetric, it seems a lot of folks are getting hung up because the master branch will no longer work out of the box with AWS Lambda. Would you be able to take a look at this and merge if able? Also if you need more eyes/help on this repo let me know. I would be willing to help maintain.

[anandcdas]

Hi @arithmetric, we will have to update this repo as AWS Lambda will stop its support for Node.js 16 by June 12, 2024.

@mylesboone Thanks for your help. Much appreciated.

[GatienBoquet]

@arithmetric Hello can you accept this PR :)

[dkavanagh]

I've taken this version into my codebase. I wish it could be merged instead!

[arithmetric]

Thanks for this contribution (and for the patience for a review)!

I'm going to make some other maintenance changes, like updating dependencies, and then will publish a release.

[arithmetric]

To avoid any functional changes, I'll restore this Source parameter.