Update changelog

Author: PastelStorm

CHANGELOG.md

@@ -7,6 +7,7 @@
 * Fix flaky Korean OCR test assertions for tesseract compatibility
 * Use `.python-version` file as single source of truth for Python version across all CI workflows
 * Re-enable arm64 Docker image builds using a dedicated ARM runner (`opensource-linux-arm64-4core`), restoring multiarch support for both amd64 and arm64
+* Switch all CI workflows to faster self-hosted runners (`opensource-linux-8core`)
 
 ## 0.0.93
 * Refactored the Dockerfile to use the chainguard/wolfi-base image instead of the unstructured/base-image. This is to align with the recent change in the unstructured repo where the same change was made.