image: use golang builder 1.25

Update to latest golang version (2025-08-12).

Signed-off-by: Shachar Sharon <[email protected]>

Author: synarete

Dockerfile

@@ -1,7 +1,7 @@
 ARG BASE_IMG="quay.io/samba.org/samba-server:latest"
 
 # Build smbmetrics
-FROM docker.io/golang:1.24 AS builder
+FROM docker.io/golang:1.25 AS builder
 ARG GIT_VERSION="(unset)"
 ARG COMMIT_ID="(unset)"
 ARG ARCH=""