chore(container): update golang:1.23.6-alpine docker digest to 2c49857 (#31754)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| golang | stage | digest | `f7b9e13` -> `2c49857` |

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containers/apps/kube-sa-proxy/Dockerfile

@@ -1,5 +1,5 @@
 # Stage 1 - Build the Go application
-FROM golang:1.23.6-alpine@sha256:f7b9e138cb7d4c3dfbfecf922023a4aafc4892afdc7467d58f1a9770eef7c12c AS builder
+FROM golang:1.23.6-alpine@sha256:2c49857f2295e89b23b28386e57e018a86620a8fede5003900f2d138ba9c4037 AS builder
 
 # Install necessary build dependencies
 RUN apk --no-cache add --update gcc musl-dev