chore: clarify Sentry license attribution

[marandaneto]

💡 Motivation and Context

Clarifies attribution for the portions of the Ruby and Rails exception-capture code derived from getsentry/sentry-ruby, including the Sentry copyright notice and MIT license link.

💚 How did you test it?

Not run; license/header-only change.

📝 Checklist

• I reviewed the submitted code.
• I added tests to verify the changes.
• I updated the docs if needed.
• No breaking change or entry added to the changelog.

If releasing new changes

• Ran pnpm changeset to generate a changeset file

[greptile-apps]

_{Reviews (1): Last reviewed commit: "chore: clarify Sentry license attributio..." | Re-trigger Greptile}