fix(deps): update dependency nodemailer to v6.9.15

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
nodemailer (source)	6.9.14 -> 6.9.15

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Release Notes

nodemailer/nodemailer (nodemailer)

### [`v6.9.15`](https://redirect.github.com/nodemailer/nodemailer/blob/HEAD/CHANGELOG.md#6915-2024-08-08) [Compare Source](https://redirect.github.com/nodemailer/nodemailer/compare/v6.9.14...v6.9.15) ##### Bug Fixes - Fix memory leak ([#​1667](https://redirect.github.com/nodemailer/nodemailer/issues/1667)) ([baa28f6](https://redirect.github.com/nodemailer/nodemailer/commit/baa28f659641a4bc30360633673d851618f8e8bd)) - **mime:** Added GeoJSON closes [#​1637](https://redirect.github.com/nodemailer/nodemailer/issues/1637) ([#​1665](https://redirect.github.com/nodemailer/nodemailer/issues/1665)) ([79b8293](https://redirect.github.com/nodemailer/nodemailer/commit/79b8293ad557d36f066b4675e649dd80362fd45b))

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[github-actions[bot]]

:tada: This issue has been resolved in version 3.7.0-rec-release.28 :tada:

The release is available on:

• npm package (@beta dist-tag)
• GitHub release

Your semantic-release bot :package::rocket: