Release Notes for v15.4.1

Fixes

• Fixed an issue where alternateImages did not work properly on macOS. #33104 (Also in 16, 17, 18)
• Strip crashpad_handler binary on Linux, reducing bundle size. #33173 (Also in 16, 17, 18)

Other Changes

• Security: backported fix for 1291728. #33178
• Security: backported fix for 1295786. #33168
• Security: backported fix for chromium:1289383. #33181