Bumps [symfony/mailer](https://github.com/symfony/mailer) from 7.4.8 to 7.4.12. <details> <summary>Release notes</summary> <p><em>Sourced from <a href="https://github.com/symfony/mailer/releases">symfony/mailer's releases</a>.</em></p> <blockquote> <h2>v7.4.12</h2> <p><strong>Changelog</strong> (<a href="https://github.com/symfony/mailer/compare/v7.4.3...v7.4.12">https://github.com/symfony/mailer/compare/v7.4.3...v7.4.12</a>)</p> <ul> <li>security #cve-2026-45068 Add end-of-options separator before recipients in SendmailTransport; reject addresses starting with a dash (<a href="https://github.com/alexandre-daubois"><code>@alexandre-daubois</code></a>)</li> </ul> </blockquote> </details> <details> <summary>Commits</summary> <ul> <li>See full diff in <a href="https://github.com/symfony/mailer/compare/v7.4.8...v7.4.12">compare view</a></li> </ul> </details> <br /> Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>