[INFRA] Update Docker base images to Mandrel 25.x

[manusa]

Description

Update Quarkus Docker base images to latest versions compatible with Java 25.

Context

Current images (Java 21):

• Builder: quay.io/quarkus/ubi-quarkus-mandrel-builder-image:23.1-java21
• Runtime: quay.io/quarkus/quarkus-micro-image:2.0

Target images (after Java 25 update):

• Builder: quay.io/quarkus/ubi9-quarkus-mandrel-builder-image:25.0-jdk-25
• Runtime: quay.io/quarkus/quarkus-micro-image:2.0 (verify latest compatible version)

Files to modify

• src/main/docker/Dockerfile.build

Dependencies

This should be done after:

• [DEPS] Update Java to 25 LTS #170 - Update Java to 25 LTS

Acceptance Criteria

• Builder image updated to Mandrel 25.x (Java 25 compatible)
• Runtime image updated to latest compatible version
• Container builds successfully on both amd64 and arm64
• CI pipeline builds both architectures

Verification

• docker build -f src/main/docker/Dockerfile.build . succeeds
• Container runs correctly

Notes

This issue supersedes #151 which was closed because Mandrel 24.x+ requires Java 23+, making it incompatible with the previous Java 21 setup.