build(deps): bump golang in /shared/golang

Bumps golang from 1.24.5-bookworm to 1.25.3-bookworm.

---
updated-dependencies:
- dependency-name: golang
  dependency-version: 1.25.3-bookworm
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

shared/golang/Dockerfile

@@ -3,7 +3,7 @@ RUN rm -f /etc/apt/apt.conf.d/docker-clean \
     && echo 'Binary::apt::APT::Keep-Downloaded-Packages "true";' | tee /etc/apt/apt.conf.d/keep-cache
 
 
-FROM golang:1.25.3-bookworm@sha256:51b6b12427dc03451c24f7fc996c43a20e8a8e56f0849dd0db6ff6e9225cc892 AS golang-base
+FROM golang:1.25.3-bookworm@sha256:ee420c17fa013f71eca6b35c3547b854c838d4f26056a34eb6171bba5bf8ece4 AS golang-base
 
 
 FROM golang-base AS golang-control-plane-builder