security/xray-core: Update to 1.8.4
Changelogs:
1.8.4: https://github.com/XTLS/Xray-core/releases/tag/v1.8.4 1.8.3: https://github.com/XTLS/Xray-core/releases/tag/v1.8.3 1.8.1: https://github.com/XTLS/Xray-core/releases/tag/v1.8.1 1.8.0: https://github.com/XTLS/Xray-core/releases/tag/v1.8.0
PR: 273637
Approved by: zirias (mentor)
Differential Revision: https://reviews.freebsd.org/D41972