Reset cache on Windows bots.

This is required to restore a lot of Windows bots that are failing to
compile after the attempt to roll libc++.

Bug: None
Change-Id: Id9f9dba0a529eddae7edd3fc56e73b453ef2acd0
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/275120
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Commit-Queue: Henrik Boström <hbos@webrtc.org>
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Auto-Submit: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#38058}
diff --git a/tools_webrtc/get_landmines.py b/tools_webrtc/get_landmines.py
index 3539943..ae4183f 100755
--- a/tools_webrtc/get_landmines.py
+++ b/tools_webrtc/get_landmines.py
@@ -46,6 +46,7 @@
     print('Clobber because of libc++ issue')
     print('Clobber because of libc++ issue - take 2')
     print('Clobber because of libc++ issue - take 3')
+    print('Clobber because of libc++ issue - take 4 (crbug.com/1337238)')
   if host_os() == 'mac':
     print('Clobber due to iOS compile errors (crbug.com/694721)')
     print('Clobber to unblock https://codereview.webrtc.org/2709573003')