sweet: disable gvisor benchmark

gVisor currently does not build with Go 1.19, so exclude it from "all",
"default", and integration testing until it is fixed. It can still be
requested explicitly with -run=gvisor.

For golang/go#51445.

Change-Id: Ib839899af169ff247aa59f264c7891e16784603c
Reviewed-on: https://go-review.googlesource.com/c/benchmarks/+/389754
Trust: Michael Pratt <mpratt@google.com>
Run-TryBot: Michael Pratt <mpratt@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2 files changed