Bump io.quarkus:quarkus-universe-bom from 3.10.0 to 3.13.0

Bumps [io.quarkus:quarkus-universe-bom](https://github.com/quarkusio/quarkus-platform) from 3.10.0 to 3.13.0.
- [Commits](quarkusio/quarkus-platform@3.10.0...3.13.0)

---
updated-dependencies:
- dependency-name: io.quarkus:quarkus-universe-bom
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Drops mailreader example as deprecated and based on Struts 1

Upgrades to Struts 2.5.22