fix: handle read-only .git files in deploy cleanup on Windows#4719

OiPunk wants to merge 1 commit intogoogle:maingoogle/adk-python:mainfrom

OiPunk:codex/adk-4635-windows-rmtree-readonlyOiPunk/adk-python:codex/adk-4635-windows-rmtree-readonlyCopy head branch name to clipboard