add .DS_Store to .gitignore, which is a common trash file on macOS (#6049) (#6051)

mergify[bot] · wjwwood · web-flow · commit b2ef3a45a527 · 2025-11-25T09:50:58.000+01:00
(cherry picked from commit 2cc1454) Signed-off-by: William Woodall <wjwwood@intrinsic.ai> Co-authored-by: William Woodall <william@osrfoundation.org>
diff --git a/.gitignore b/.gitignore
@@ -4,3 +4,4 @@ _build/
 .vscode/
 __pycache__
 ros2doc/
+.DS_Store
