Airgapped install of plugin fails trying to access artifacts.elastic.co

@leandrojmp
I now also tried to install the file logstash-output-opensearch-2.0.2-java.gem and it still seems to need access to artifacts.elastic.co

 > [config 7/8] RUN logstash-plugin install /tmp/dist/logstash-output-opensearch-2.0.2-java.gem:
0.533 Using bundled JDK: /usr/share/logstash/jdk
71.82 ERROR: Something went wrong when installing /tmp/dist/logstash-output-opensearch-2.0.2-java.gem, message: Failed to open TCP connection to artifacts.elastic.co:443 (execution expired)

What is needed from artifacts.elastic.co?
Are there any additional resources from the internet that is needed?

Best Regards
Sebastian Thörn