test: fix address in use error

test-domain-dep0097.js was sporadically failing because it is a parallel
test and uses opens a default inspector port.

This commit changes to bind to a random free port

test/parallel/test-domain-dep0097.js

@@ -13,5 +13,5 @@ process.on('warning', common.mustCall((warning) => {
 }));
 
 domain.create().run(() => {
-  inspector.open();
+  inspector.open(0);
 });