Update golang:1.25-alpine Docker digest to ac09a5f (main) (#8760)

Update golang:1.25-alpine Docker digest to ac09a5f

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

build/Dockerfile

@@ -20,7 +20,7 @@ FROM ghcr.io/nginx/dependencies/nginx-ubi:ubi8@sha256:6b69a5df881f436aaa0929675e
 FROM ghcr.io/nginx/dependencies/nginx-ubi:ubi9@sha256:c69c8a1d3255d5adaa30de233293d76fa3d903a5583c5933e26567d4e4c6f877 AS ubi9-packages
 FROM ghcr.io/nginx/alpine-fips:0.4.0-alpine3.22@sha256:61ed75f252bde7da1e6db33d2709456e87478280dfae3d11084f94c361e9f329 AS alpine-fips-3.22
 FROM redhat/ubi9-minimal:9.7-1764794109@sha256:6fc28bcb6776e387d7a35a2056d9d2b985dc4e26031e98a2bd35a7137cd6fd71 AS ubi-minimal
-FROM golang:1.25-alpine@sha256:26111811bc967321e7b6f852e914d14bede324cd1accb7f81811929a6a57fea9 AS golang-builder
+FROM golang:1.25-alpine@sha256:ac09a5f469f307e5da71e766b0bd59c9c49ea460a528cc3e6686513d64a6f1fb AS golang-builder
 
 ############################################# NGINX files #############################################
 FROM scratch AS nginx-files