[release-branch.go1.17] misc/cgo/testplugin: skip TestIssue25756pie on darwin/arm64 builder

Repeat of CL 321349 for macOS 12. We won't need to do this again -- the
test is passing at tip.

Updates #46239.

Change-Id: Ib279ada443ee03eb8e70fde4bbfba65ce0f6322e
Reviewed-on: https://go-review.googlesource.com/c/go/+/369748
Trust: Heschi Kreinick <heschi@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
diff --git a/misc/cgo/testplugin/plugin_test.go b/misc/cgo/testplugin/plugin_test.go
index 9697dbf..ba4dd4c 100644
--- a/misc/cgo/testplugin/plugin_test.go
+++ b/misc/cgo/testplugin/plugin_test.go
@@ -265,7 +265,7 @@
 
 // Test with main using -buildmode=pie with plugin for issue #43228
 func TestIssue25756pie(t *testing.T) {
-	if os.Getenv("GO_BUILDER_NAME") == "darwin-arm64-11_0-toothrot" {
+	if os.Getenv("GO_BUILDER_NAME") == "darwin-arm64-11_0-toothrot" || os.Getenv("GO_BUILDER_NAME") == "darwin-arm64-12_0-toothrot" {
 		t.Skip("broken on darwin/arm64 builder in sharded mode; see issue 46239")
 	}