deps: update docker.io/library/maven:3.9.9-eclipse-temurin-11-alpine docker digest to d323c2b (#3601)

This PR contains the following updates: | Package | Type | Update | Change | |---|---|---|---| | docker.io/library/maven | stage | digest | `9a259c6` -> `d323c2b` | --- > [!WARNING] > Some dependencies could not be looked up. Check the Dependency Dashboard for more information. --- ### Configuration 📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about this update again. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box --- This PR was generated by [Mend Renovate](https://mend.io/renovate/). View the [repository job log](https://developer.mend.io/github/googleapis/sdk-platform-java). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzOS4xNDUuMCIsInVwZGF0ZWRJblZlciI6IjM5LjE0NS4wIiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6W119-->

Author: renovate-bot

.cloudbuild/library_generation/library_generation.Dockerfile

@@ -15,7 +15,7 @@
 # install gapic-generator-java in a separate layer so we don't overload the image
 # with the transferred source code and jars
 
-FROM docker.io/library/maven:3.9.9-eclipse-temurin-11-alpine@sha256:9a259c69e57564f1d13f6f5b275e37c638c3103dc1978237e90b6d4d66bc9b0c AS ggj-build
+FROM docker.io/library/maven:3.9.9-eclipse-temurin-11-alpine@sha256:d323c2bf4d095c661930481ad2179d41aa3a5b807c7bf9f4cb15ed331fc6997a AS ggj-build
 
 WORKDIR /sdk-platform-java
 COPY . .