build: bump golang from 1.25.3 to 1.25.4

Bumps golang from 1.25.3 to 1.25.4.

---
updated-dependencies:
- dependency-name: golang
  dependency-version: 1.25.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Dockerfile.alpine

@@ -1,7 +1,7 @@
 ARG DOCKER_GEN_VERSION=main
 
 # Build docker-gen from scratch
-FROM --platform=$BUILDPLATFORM golang:1.25.3-alpine AS go-builder
+FROM --platform=$BUILDPLATFORM golang:1.25.4-alpine AS go-builder
 
 ENV CGO_ENABLED=0
 

Dockerfile.debian

@@ -1,7 +1,7 @@
 ARG DOCKER_GEN_VERSION=main
 
 # Build docker-gen from scratch
-FROM --platform=$BUILDPLATFORM golang:1.25.3 AS go-builder
+FROM --platform=$BUILDPLATFORM golang:1.25.4 AS go-builder
 
 ENV CGO_ENABLED=0