internal/gocommand: re-disable flaky TestRmdirAfterGoList_Runner

The use of WaitDelay means completion of the Run operation
does not mean the go command has terminated. Needs more thought.

Updates golang/go#73736

Change-Id: Ia7852fc1cae13e841c0bc28f3567809e1b92915f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/675515
LUCI-TryBot-Result: Go LUCI <[email protected]>
Auto-Submit: Alan Donovan <[email protected]>
Reviewed-by: Jonathan Amsterdam <[email protected]>

Author: adonovan

internal/gocommand/invoke_test.go

@@ -41,6 +41,8 @@ func TestGoVersion(t *testing.T) {
 // If this test ever fails, the combination of the gocommand package
 // and the go command itself has a bug; this has been observed (#73503).
 func TestRmdirAfterGoList_Runner(t *testing.T) {
+	t.Skip("flaky; see https://github.com/golang/go/issues/73736#issuecomment-2885407104")
+
 	testRmdirAfterGoList(t, func(ctx context.Context, dir string) {
 		var runner gocommand.Runner
 		stdout, stderr, friendlyErr, err := runner.RunRaw(ctx, gocommand.Invocation{