build(deps): bump golang from 1.24-alpine to 1.25-alpine

Bumps golang from 1.24-alpine to 1.25-alpine.

---
updated-dependencies:
- dependency-name: golang
  dependency-version: 1.25-alpine
  dependency-type: direct:production
...

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

Author: dependabot[bot]

Dockerfile

@@ -5,7 +5,7 @@
 ##
 
 # Cross compile from native platform to target arch
-FROM --platform=$BUILDPLATFORM golang:1.24-alpine as go
+FROM --platform=$BUILDPLATFORM golang:1.25-alpine as go
 WORKDIR /build
 COPY --link go.mod go.sum .
 COPY --link ./proxy-init ./proxy-init

Dockerfile-cni-plugin

@@ -1,7 +1,7 @@
 # syntax=docker/dockerfile:1.4
 
 # Cross compile from native platform to target arch
-FROM --platform=$BUILDPLATFORM golang:1.24-alpine as go
+FROM --platform=$BUILDPLATFORM golang:1.25-alpine as go
 WORKDIR /build
 COPY --link go.mod go.sum ./
 COPY --link ./cni-plugin ./cni-plugin