Add Maven 'bill-of-materials' project for 3.2.x [SPR-11204]

[spring-projects-issues]

Rob Winch opened SPR-11204 and commented

Consider backporting the bom from #15764 to the 3.2.x branch

---

No further details from SPR-11204

[spring-projects-issues]

Rob Winch commented

Build has completed and deployed the new bom to http://repo.spring.io/libs-snapshot/org/springframework/spring-framework-bom/3.2.6.BUILD-SNAPSHOT/