build(deps): Bump phpmailer/phpmailer from 5.2.28 to 6.5.0

Bumps [phpmailer/phpmailer](https://github.com/PHPMailer/PHPMailer) from 5.2.28 to 6.5.0.
- [Release notes](https://github.com/PHPMailer/PHPMailer/releases)
- [Changelog](https://github.com/PHPMailer/PHPMailer/blob/master/changelog.md)
- [Commits](PHPMailer/PHPMailer@v5.2.28...v6.5.0)

---
updated-dependencies:
- dependency-name: phpmailer/phpmailer
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

composer.json

@@ -8,7 +8,7 @@
         }
     ],
     "require": {
-        "phpmailer/phpmailer": "5.2.28",
+        "phpmailer/phpmailer": "6.5.0",
         "cyclonedx/cyclonedx-php-composer": "^3.10"
     },
     "config": {