Update Go to `v1.25.8`

[digitalghost-dev]

Updating Go to v1.25.8 will fix several CVEs:

NAME                               INSTALLED   FIXED IN                      TYPE       VULNERABILITY        SEVERITY  EPSS %  RISK
stdlib                             go1.24.12   1.25.8, 1.26.1                go-module  CVE-2026-25679       High      8.69    < 0.1
stdlib                             go1.24.12   1.24.13, 1.25.7, 1.26.0-rc.3  go-module  CVE-2025-68121       Critical  3.97    < 0.1
stdlib                             go1.24.12   1.25.8, 1.26.1                go-module  CVE-2026-27142       Medium    1.26    < 0.1
stdlib                             go1.24.12   1.24.13, 1.25.7               go-module  CVE-2025-61732       High      0.38    < 0.1
stdlib                             go1.24.12   1.25.8, 1.26.1                go-module  CVE-2026-27139       Low       0.21    < 0.1