testing: skip flaky TestRaiseException on windows-amd64-2012-*
Modify skip rule for TestRaiseException to trigger on both the base
builder (windows-amd64-2012) and the newcc canary builder
(windows-amd64-2012-newcc).
Updates #49681.
Change-Id: I132f9ddd102666b68ad04cc661fdcc2cd841051a
Reviewed-on: https://go-review.googlesource.com/c/go/+/451294
Auto-Submit: Than McIntosh <thanm@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Than McIntosh <thanm@google.com> Reviewed-by: Bryan Mills <bcmills@google.com>