Bump org.simplejavamail:simple-java-mail from 8.12.6 to 9.1.0 (#135)

Bumps [org.simplejavamail:simple-java-mail](https://github.com/bbottema/simple-java-mail) from 8.12.6 to 9.1.0.
- [Release notes](https://github.com/bbottema/simple-java-mail/releases)
- [Changelog](https://github.com/bbottema/simple-java-mail/blob/master/RELEASE.txt)
- [Commits](bbottema/simple-java-mail@8.12.6...9.1.0)

---
updated-dependencies:
- dependency-name: org.simplejavamail:simple-java-mail
  dependency-version: 9.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pom.xml

@@ -38,7 +38,7 @@
         <version.picocli>4.7.7</version.picocli>
         <version.progressbar>0.10.2</version.progressbar>
         <version.commons-net>3.13.0</version.commons-net>
-        <version.simple-java-mail>8.12.6</version.simple-java-mail>
+        <version.simple-java-mail>9.1.0</version.simple-java-mail>
         <version.junit>5.14.4</version.junit>
         <version.assertj-core>3.27.7</version.assertj-core>
         <version.awaitility>4.3.0</version.awaitility>