Bump the npm_and_yarn group across 1 directory with 2 updates

Bumps the npm_and_yarn group with 2 updates in the / directory: [nodemailer](https://github.com/nodemailer/nodemailer) and [@types/nodemailer](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/nodemailer).


Updates `nodemailer` from 6.9.9 to 6.9.15
- [Release notes](https://github.com/nodemailer/nodemailer/releases)
- [Changelog](https://github.com/nodemailer/nodemailer/blob/master/CHANGELOG.md)
- [Commits](nodemailer/nodemailer@v6.9.9...v6.9.15)

Updates `@types/nodemailer` from 6.4.7 to 6.4.15
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/nodemailer)

---
updated-dependencies:
- dependency-name: nodemailer
  dependency-type: direct:production
  dependency-group: npm_and_yarn
- dependency-name: "@types/nodemailer"
  dependency-type: direct:development
  dependency-group: npm_and_yarn
...

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

package.json

@@ -19,7 +19,7 @@
     "@electron-forge/maker-flatpak": "^6.0.4",
     "@electron-forge/maker-squirrel": "^6.0.4",
     "@electron-forge/maker-zip": "^6.0.4",
-    "@types/nodemailer": "^6.4.7",
+    "@types/nodemailer": "^6.4.15",
     "electron": "^22.3.25",
     "electron-builder": "~22.10.5",
     "electron-builder-squirrel-windows": "^24.0.0-alpha.8"
@@ -32,7 +32,7 @@
     "electron-squirrel-startup": "^1.0.0",
     "express": "^4.20.0",
     "helmet": "^6.0.1",
-    "nodemailer": "^6.9.9",
+    "nodemailer": "^6.9.15",
     "nodepub": "^3.0.8",
     "request": "^2.88.2",
     "request-promise": "^4.2.6",