cherry-pick(#23674): chore: fix language port 1.35 release notes (#23701)

This PR cherry-picks the following commits: - 460e7fc Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>

Author: playwrightmachine

docs/src/release-notes-csharp.md

@@ -8,7 +8,7 @@ toc_max_heading_level: 2
 
 ### Highlights
 
-* New option `maskColor` for methods [`method: Page.screenshot`] and [`method: Locator.screenshot`] to change default masking color.
+* New option `MaskColor` for methods [`method: Page.screenshot`] and [`method: Locator.screenshot`] to change default masking color.
 
 * New `uninstall` CLI command to uninstall browser binaries:
  ```bash

docs/src/release-notes-python.md

@@ -8,7 +8,7 @@ toc_max_heading_level: 2
 
 ### Highlights
 
-* New option `maskColor` for methods [`method: Page.screenshot`] and [`method: Locator.screenshot`] to change default masking color.
+* New option `mask_color` for methods [`method: Page.screenshot`] and [`method: Locator.screenshot`] to change default masking color.
 
 * New `uninstall` CLI command to uninstall browser binaries:
  ```bash