proc: disable flaky tests on windows/arm64 (#3328)

Disable some tests on windows/arm64 that are flaky.

Documentation/backend_test_health.md

@@ -21,6 +21,7 @@ Tests skipped by each supported backend:
 	* 1 broken
 	* 3 see https://github.com/go-delve/delve/issues/2768
 	* 1 upstream issue
-* windows/arm64 skipped = 2
+* windows/arm64 skipped = 5
+	* 3 broken
 	* 1 broken - cgo stacktraces
 	* 1 broken - step concurrent

pkg/proc/proc_test.go

@@ -597,6 +597,7 @@ func TestNextGeneral(t *testing.T) {
 }
 
 func TestNextConcurrent(t *testing.T) {
+	skipOn(t, "broken", "windows", "arm64")
 	testcases := []nextTest{
 		{8, 9},
 		{9, 10},
@@ -632,6 +633,7 @@ func TestNextConcurrent(t *testing.T) {
 }
 
 func TestNextConcurrentVariant2(t *testing.T) {
+	skipOn(t, "broken", "windows", "arm64")
 	// Just like TestNextConcurrent but instead of removing the initial breakpoint we check that when it happens is for other goroutines
 	testcases := []nextTest{
 		{8, 9},
@@ -1513,6 +1515,7 @@ func TestBreakpointCounts(t *testing.T) {
 }
 
 func TestHardcodedBreakpointCounts(t *testing.T) {
+	skipOn(t, "broken", "windows", "arm64")
 	withTestProcess("hcbpcountstest", t, func(p *proc.Target, grp *proc.TargetGroup, fixture protest.Fixture) {
 		counts := map[int64]int{}
 		for {

service/dap/server_test.go

@@ -3432,6 +3432,9 @@ func TestHaltPreventsAutoResume(t *testing.T) {
 // goroutine is hit the correct number of times and log points set in the
 // children goroutines produce the correct number of output events.
 func TestConcurrentBreakpointsLogPoints(t *testing.T) {
+	if runtime.GOOS == "windows" && runtime.GOARCH == "arm64" {
+		t.Skip("broken")
+	}
 	tests := []struct {
 		name        string
 		fixture     string