Update content/changelog/2025.10.0.md

Co-authored-by: Keith Burzinski <kbx81x@gmail.com>

Author: bdraco

content/changelog/2025.10.0.md

@@ -278,7 +278,7 @@ If you contribute to ESPHome or maintain external components, you'll notice some
 - **Release builds 6-7x faster** - Release test time reduced from 12+ hours to 1h40m
 - **Smarter component testing** - Changed components get isolated test runners with full validation, while dependency-only components are grouped for speed
 - **Better feedback loops** - Get results faster, making it easier to iterate on contributions
-- **More reliable testing** - APT package caching (2m30s → 5s), disk space management (66GB instead of 23GB), and retry logic for downloads
+- **More reliable testing** - APT package caching (2m30s → 5s), retry logic for downloads, and utilization of a larger available disk partition (66GB instead of 23GB)
 
 These improvements make it much easier to contribute to ESPHome by reducing wait times and making the CI system more efficient and reliable.