Override reclient timeouts on windows.

Set the timeouts in autoninja for now, determine template rollout
problem after.

Bug: b/335525655
Change-Id: I0021b3031a9e8952acea465af94f61a4c50d774f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/5477047
Reviewed-by: Ramy Medhat <abdelaal@google.com>
Commit-Queue: Michael Savigny <msavigny@google.com>

reclient_helper.py

@@ -287,6 +287,9 @@ def set_win_defaults():
     # Turn off creds caching for windows, as luci-auth as credshelper shouldn't
     # use it.
     os.environ.setdefault("RBE_enable_creds_cache", "false")
+    # Extend timeouts on windows
+    os.environ.setdefault("RBE_exec_timeout","4m")
+    os.environ.setdefault("RBE_reclient_timeout","8m")
 
 
 def workspace_is_cog():