all: add test skips for GOARCH=wasm

These changes are enough to get 'GOOS=js GOARCH=wasm go test ./...'
to pass.

For golang/go#61104.

Change-Id: I78a2978a83a1026adeecc81b31bf7c2aa2db2155
Cq-Include-Trybots: luci.golang.try:x_benchmarks-gotip-js-wasm
Reviewed-on: https://go-review.googlesource.com/c/benchmarks/+/533695
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
6 files changed