[jenkinsci/mailer-plugin] 8b8a12: Upgrade HtmlUnit from 2.x to 3.x (#237)

Branch: refs/heads/master Home: https://github.com/jenkinsci/mailer-plugin Commit: 8b8a126591f2fe5d9290ff6eb9cef6def94ef43c https://github.com/jenkinsci/mailer-plugin/commit/8b8a126591f2fe5d9290ff6eb9cef6def94ef43c Author: timja-bot <108958225+timja-...@users.noreply.github.com>

[jenkinsci/mailer-plugin] 8b8a12: Upgrade HtmlUnit from 2.x to 3.x (#237)

Branch: refs/heads/gh-readonly-queue/master/pr-237-bb9cf7f061a86807524b7e5cf8a0ab80c8fb Home: https://github.com/jenkinsci/mailer-plugin Commit: 8b8a126591f2fe5d9290ff6eb9cef6def94ef43c https://github.com/jenkinsci/mailer-plugin/commit/8b8a126591f2fe5d9290ff6eb9cef6def94ef43c