chore(deps): update golang:1.25.3 docker digest to bce1e7e (#1382)

Co-authored-by: elastic-renovate-prod[bot] <174716857+elastic-renovate-prod[bot]@users.noreply.github.com>

Author: elastic-renovate-prod[bot]

.buildkite/release.yml

@@ -1,7 +1,7 @@
 steps:
   - label: Release
     agents:
-      image: "golang:1.25.3@sha256:6ea52a02734dd15e943286b048278da1e04eca196a564578d718c7720433dbbe"
+      image: "golang:1.25.3@sha256:bce1e7ec780444d85d041889e7a0e542b0be7b272a7f46a5fb947f0f484b9736"
       cpu: "16"
       memory: "24G"
       ephemeralStorage: "20G"