fix: correct RELEASES.md format for Speakeasy publish action

The 0.42.11 entry was missing trailing spaces on the OpenAPI Doc line,
causing the Speakeasy publish action to fail with "error parsing last
release info".

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: fxdgear

RELEASES.md

@@ -1195,9 +1195,9 @@ Based on:
 ## 2026-03-25 16:00:00
 ### Changes
 Based on:
-- OpenAPI Doc
+- OpenAPI Doc  
 - Speakeasy CLI 1.601.0 (2.680.0) https://github.com/speakeasy-api/speakeasy
 ### Generated
 - [python v0.42.11] .
 ### Releases
-- [PyPI v0.42.11] https://pypi.org/project/unstructured-client/0.42.11 - .
+- [PyPI v0.42.11] https://pypi.org/project/unstructured-client/0.42.11 - .