docker: ssh: bump golang from 1.24-alpine3.22 to 1.25-alpine3.22 in /ssh

Bumps golang from 1.24-alpine3.22 to 1.25-alpine3.22.

---
updated-dependencies:
- dependency-name: golang
  dependency-version: 1.25-alpine3.22
  dependency-type: direct:production
...

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

Author: dependabot[bot]

ssh/Dockerfile

@@ -1,5 +1,5 @@
 # base stage
-FROM golang:1.24-alpine3.22 AS base
+FROM golang:1.25-alpine3.22 AS base
 
 ARG GOPROXY