v4.0.0-beta.1

What's Changed

All changes are visible on #889

Other Changes

• Migration to Spring Boot 4.1.0
• Adopt Java 25 (latest LTS) as baseline by @thibauult in #891
• fix(ci): accept SemVer pre-release tags in release workflow by @thibauult in #892
• Add symphony-bdk-http-jdk: a java.net.http.HttpClient-based ApiClient transport by @thibauult in #894

Full Changelog: v3.5.1...v4.0.0-beta.1