Quarkus Langchain4j has two regular CI actions:
1. Ecosystem CI: https://github.com/quarkiverse/quarkus-langchain4j/actions/workflows/quarkus-snapshot.yaml
2. Nightly build: https://github.com/quarkiverse/quarkus-langchain4j/actions/workflows/build-nightly.yml

and have the following problems:
1. -They are run for main branch only and do not verify 1.2 branch, which is used in Quarkus Platform 3.27 - [UPD: as of 30.1.26 nightly ecosystem builds are working with 1.2 and are monitored in this issue: https://github.com/quarkusio/quarkus/issues/50521]
2. Native tests are disabled on nightly (https://github.com/quarkiverse/quarkus-langchain4j/commit/529877ae5195f40d959a8ca258bda7917f1602ea)
3. They do not affect "samples" directory, which contains examples of realistic Quarkus apps which use Quarkus and quarkus-langchain4j [UPD: dev team consider these tests unlikely to be implemented properly, so dropping this requirement]

-thus langchain4j repo doesn't have currently any CI that would check that the version that's in 3.27 LTS -