www/github-release-monitor: Update to 1.4.0
ChangeLog: https://github.com/iamspido/github-release-monitor/releases/tag/v1.4.0
Security: CVE-2025-66478
MFH: 2025Q4
(cherry picked from commit fbe82344841a0ac4147c17e1d408d7717f35c8ce)