Update tests; run fuzzing (#294)

Run fuzzing tests in CI.

Use race detector when running tests.

Add missing `t.Helper()` calls.

Update test helpers in `pkg/bindfilter` to use `RtlGetNtVersionNumbers`
instead of reading registry, and skip tests if not running as admin.

Signed-off-by: Hamza El-Saawy <hamzaelsaawy@microsoft.com>

pkg/security/grantvmgroupaccess_test.go

@@ -87,6 +87,8 @@ func TestGrantVmGroupAccess(t *testing.T) {
 }
 
 func verifyVMAccountDACLs(t *testing.T, name string, permissions []string) {
+	t.Helper()
+
 	cmd := exec.Command("icacls", name)
 	outb, err := cmd.CombinedOutput()
 	if err != nil {