build(deps): update maven:3.10.0-eclipse-temurin-21 docker digest to 2efc28d (#13499)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [maven](https://hub.docker.com/_/maven)
([source](https://redirect.github.com/carlossg/docker-maven)) | stage |
digest | `9b48777` → `2efc28d` |

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internal/suites/example/compose/oidc-conformance/Dockerfile

@@ -2,7 +2,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
-FROM --platform=${BUILDPLATFORM} maven:3.10.0-eclipse-temurin-21@sha256:9b4877723dadf350b452dd97d9a6401e7b56f98fa9dfe420c32ad909989c7e4c AS builder
+FROM --platform=${BUILDPLATFORM} maven:3.10.0-eclipse-temurin-21@sha256:2efc28d19f2b5f48a08c777d566850484087e110f264575111d54d2ed64ea088 AS builder
 
 ARG CONFORMANCE_SUITE_REPO=https://gitlab.com/openid/conformance-suite.git
 ARG CONFORMANCE_SUITE_REF=release-v5.3.3