install.py: Exclude out directory. NFC (#24566)

sbc100 · web-flow · commit 6db95b6147b3 · 2025-06-13T17:23:44.000-07:00
diff --git a/tools/install.py b/tools/install.py
@@ -26,6 +26,7 @@
 .git
 cache
 cache.lock
+out
 bootstrap.py
 '''.split()]
 
