grok-build 1.0.12 (OpenBSD amd64)

OpenBSD build of grok-build 1.0.12.

• Package: grok-build-1.0.12
• xAI SOURCE_REV: d5a0335a47221e8c9519936cb693e9b6450227ec
• Includes the current OpenBSD port fixes and stamped version output.
• Earlier OpenBSD releases remain unchanged.