Ruby v3.5 compatibility: gem dependencies

[fallwith]

This is primarily a placeholder issue for Ruby v3.5 compatibility auditing with regard to gems that are included by default with Ruby v3.4 but need to be brought in as dependencies with Ruby v3.5. Ruby v3.5 is expected to be released on 2025-12-25 with the earliest preview release version of v3.5 not expected to drop until at least May 2025.

We already know that OpenStruct (ostruct) will be impacted and need to be included as a dev dependency for Ruby v3.5. Once we see the first Ruby v3.5 preview build released, we should conduct an audit to see if any other gems used by the agent are impacted.

[workato-integration]

https://new-relic.atlassian.net/browse/NR-258185