Ignore console collor in message listener test (#343)

One of the message listener tests fails on some versions of Node 20 because it is not expecting console output to use control characters for color. Make the test look only for the expected message and ignore any other characters.

Author: cmoesel

test/runtime/messageListeners-test.ts

@@ -18,9 +18,8 @@ describe('ConsoleMessageListener', () => {
     const listener = new ConsoleMessageListener();
     listener.onMessage('My Source', 'test', 'Error', 'Hello World!');
     stdoutInspect.output.should.have.length(0);
-
-    // stderr seems to always outputs line feed
-    stderrInspect.output.should.eql([`Error: [test] Hello World!\n`]);
+    stderrInspect.output.should.have.length(1);
+    stderrInspect.output[0].should.match(/Error: \[test\] Hello World!/);
   });
 
   it('should log a Warning to stdout', () => {