devel/subversion-lts: Update to latest 1.10.x version which fix two CVEs

Update devel/subversion-lts to latest 1.10.8 version.
This update fixes two CVEs

Security: CVE-2021-28544
Security: CVE-2022-24070
(cherry picked from commit dd3cc209ddfe645936b3b46ce4112b21de342f51)