chore(deps): update golang docker tag to v1.23.3 (elastic#906)

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:1.23.2@sha256:a7f2fc9834049c1f5df787690026a53738e55fc097cd8a4a93faa3e06c67ee32"
+      image: "golang:1.23.3@sha256:73f06be4578c9987ce560087e2e2ea6485fb605e3910542cadd8fa09fc5f3e31"
       cpu: "16"
       memory: "24G"
       ephemeralStorage: "20G"