Upgrade to v2 of SES API to increase attachment limit to 40mb

[owaincuvelier]

Description

By updating to v2 of the AWS SES API larger attachments will be possible:

https://docs.aws.amazon.com/ses/latest/dg/quotas.html

https://docs.aws.amazon.com/aws-sdk-php/v3/api/class-Aws.SesV2.SesV2Client.html

Acceptance Criteria

• [ ] SES v2 is used for email sending
• [ ] Test v2 for any breaking changes
• [ ] Test new 40mb attachment limit (confirm it actually works)
• [ ] If any breaking changes or new feature, document them in https://docs.altis-dxp.com/cloud/email-delivery/

For Altis Team Use

Ready for Work Checklist

Is this ticket ready to be worked on? See the Play Book Definition of Ready

• [x] Is the title clear?
• [x] Is the description clear and detailed enough?
• [x] Are acceptance criteria listed?
• [x] Have any dependencies been identified? (Optional)
• [x] Have any documentation/playbook changes been identified? (Optional)
• [ ] Is an estimate or time box assigned?
• [ ] Is a priority label assigned?
• [ ] Is this ticket added to a milestone?
• [ ] Is this ticket added to an epic? (Optional)

Completion Checklist

Is this ticket done? See the Play Book Definition of Done

• [ ] Has the acceptance criteria been met?
• [ ] Is the documentation updated (including README)?
• [ ] Do any code/documentation changes meet project standards?
• [ ] Are automatic tests in place to verify the fix or new functionality?
  • [ ] Or are manual tests documented (at least on this ticket)?
• [ ] Are any Playbook/Handbook pages updated?
• [ ] Has a new module release (patch/minor) been created/scheduled?
• [ ] Have the appropriate backport labels been added to the PR?

[wisyhambolu]

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