Log Message:
www/ruby-aws-sdk-core: update to 3.191.6

3.191.6 (2024-04-02)

* Issue - Performance optimization: ensure presence and order of instance
  variables in PluginOptions (#3002).

3.191.5 (2024-03-26)

* Issue - Fix EC2Metadata and InstanceProfileCredentials to respect the port
  from a configured endpoint from code, ENV, or shared config.