Disable rust tests on Windows

The rust tests fail on Windows due to importing of exe_util which
imports pty which imports tty which imports termios (not present),
different handling of signals, and some slash/backslash mismatches just
for good measure. Fixing these tests is out-of-scope for this project so
I am disabling them on Windows to get "git cl presubmit --all" closer to
finishing without errors on Windows.

This change can most easily be tested with this command:

    git cl presubmit --files=testing/scripts/rust/*

Bug: 1309977
Change-Id: I94c4ef177f0304f05e5c753d481b38497bb56856
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3607149
Auto-Submit: Bruce Dawson <brucedawson@chromium.org>
Reviewed-by: Robert Sesek <rsesek@chromium.org>
Commit-Queue: Robert Sesek <rsesek@chromium.org>
Cr-Commit-Position: refs/heads/main@{#996151}
NOKEYCHECK=True
GitOrigin-RevId: 5dc44535691f8f0e923e654f987c8d38c817748e
1 file changed