Changeset version bump (RooCodeInc#3167)

* changeset version bump

* Updating CHANGELOG.md format

* Update CHANGELOG.md

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Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: R00-B0T <[email protected]>
Co-authored-by: Chris Estreich <[email protected]>

Author: 4 people

.changeset/lovely-nails-fly.md

@@ -1,5 +1,10 @@
 # Roo Code Changelog
 
+## [3.15.5] - 2025-05-05
+
+- Update @google/genai to 0.12 (includes some streaming completion bug fixes)
+- Rendering performance improvements for code blocks in chat (thanks @KJ7LNW)
+
 ## [3.15.4] - 2025-05-04
 
 - Fix a nasty bug that would cause Roo Code to hang, particularly in orchestrator mode