disable the two tests that fail on Mac (#6912)

Signed-off-by: Sally MacFarlane <macfarla.github@gmail.com>

acceptance-tests/tests/src/test/java/org/hyperledger/besu/tests/acceptance/plugins/BadCLIOptionsPluginTest.java

@@ -32,6 +32,8 @@ import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.condition.DisabledOnOs;
+import org.junit.jupiter.api.condition.OS;
 
 public class BadCLIOptionsPluginTest extends AcceptanceTestBaseJunit5 {
   private BesuNode node;
@@ -52,6 +54,7 @@ public class BadCLIOptionsPluginTest extends AcceptanceTestBaseJunit5 {
   }
 
   @Test
+  @DisabledOnOs(OS.MAC)
   public void shouldNotRegister() {
     final Path registrationFile = node.homeDirectory().resolve("plugins/badCLIOptions.init");
     waitForFile(registrationFile);
@@ -59,6 +62,7 @@ public class BadCLIOptionsPluginTest extends AcceptanceTestBaseJunit5 {
   }
 
   @Test
+  @DisabledOnOs(OS.MAC)
   public void shouldNotStart() {
     // depend on the good PicoCLIOptions to tell us when it should be up
     final Path registrationFile = node.homeDirectory().resolve("plugins/pluginLifecycle.started");