Validate Rails 8.0 compatibility by checking with release notes

[kaylareopelle]

Go through the Rails 8.0 release notes to see if there are any changes that may impact our agent that may not have been caught by our test suites.

https://guides.rubyonrails.org/8_0_release_notes.html

[workato-integration]

https://new-relic.atlassian.net/browse/NR-344316