Bump io.quarkiverse.langchain4j:quarkus-langchain4j-openai from 0.11.1 to 0.12.1 in /intelligent-java-blog-reader

Bump io.quarkiverse.langchain4j:quarkus-langchain4j-openai from 0.11.1 to 0.12.1 in /intelligent-java-blog-reader #79