sysutils/rundeck: Update 5.8.0 => 5.15.0, take maintainership

Release Notes:
https://docs.rundeck.com/docs/history/5_x/version-5.9.0.html
https://docs.rundeck.com/docs/history/5_x/version-5.10.0.html
https://docs.rundeck.com/docs/history/5_x/version-5.10.1.html
https://docs.rundeck.com/docs/history/5_x/version-5.11.0.html
https://docs.rundeck.com/docs/history/5_x/version-5.12.0.html
https://docs.rundeck.com/docs/history/5_x/version-5.13.0.html
https://docs.rundeck.com/docs/history/5_x/version-5.14.0.html
https://docs.rundeck.com/docs/history/5_x/version-5.14.1.html
https://docs.rundeck.com/docs/history/5_x/version-5.15.0.html

Improve port:

• Add EXTRACT_ONLY= - no need to unpack war file.
• New version support JAVA 11 and 17 only.
• Remove CONFLICTS_INSTALL=rundeck2 - it has been removed from ports.
• Parametrize rundeck with ${PORTNAME}.
• Fix plist: RUNDECK_USER can be changed, but the name of the installed war file will always be ${PORTNAME}.war.

PR: 289391
Security: CVE-2024-52046
Security: CVE-2023-45288
Security: CVE-2024-47554
Security: CVE-2025-24970
Security: CVE-2023-3635
Security: CVE-2024-7254
Security: CVE-2024-6104
Security: CVE-2024-45337
Security: CVE-2025-22870
Security: CVE-2024-24786
Security: CVE-2024-57699
Security: CVE-2019-17571
Security: CVE-2025-22228
Security: CVE-2025-48734
Security: CVE-2025-48976
Security: CVE-2025-7783
Security: CVE-2025-55163
Security: CVE-2024-21538
Security: CVE-2022-38749
Security: CVE-2024-25710
Security: CVE-2019-5427
Security: CVE-2024-8184
Security: CVE-2020-26939
Security: CVE-2025-4949
Co-authored-by: Vladimir Druzenko <vvd@FreeBSD.org>
MFH: 2025Q3