chore(main): release 8.19.0

[github-actions]

🤖 I have created a release beep boop

8.19.0 (2026-10-15)

Features

• Retry indefinitely after a data source failure instead of stopping permanently (fa29bf8)

Bug Fixes

• Log normal HTTP errors from a data source at warn instead of error (fa29bf8)
• Measure a repeating task's interval from when the task returns (fa29bf8)
• Update ld-eventsource to 3.0.1 (fa29bf8)
• Warn and use the documented default for an invalid poll interval or initial reconnect delay (fa29bf8)

---

This PR was generated with Release Please. See documentation.

---

Note

Overview
Release 8.19.0 for the LaunchDarkly Ruby server SDK: bumps LaunchDarkly::VERSION and Release Please manifest from 8.18.3 to 8.19.0, updates the provenance verification example, and adds a CHANGELOG section for this release.

The new changelog entries (from the already-merged work in this tag) highlight indefinite retries after data source failures, warn-level logging for routine data-source HTTP errors, repeating-task intervals measured from task completion, ld-eventsource 3.0.1, and **warnings plus documented defaults when poll interval or initial reconnect delay are invalid.

^{Reviewed by Cursor Bugbot for commit ea4d3b1. Bugbot is set up for automated code reviews on this repo. Configure here.}

[github-actions]

🤖 Created releases:

• 8.19.0

🌻